Service Manual2007 Captiva Diagnostic Trouble Code (DTC) P1715

Captiva

Diagnostic Trouble Code (DTC) P1715

Incorrect 1st Gear Ratio (SS5 : OFF, TCC Lock up PC Solenoid (SLU) : OFF)

Conditions for Running the DTC

Mode selector is up and down mode.
Output speed is 500-1260 RPM.
The elapsed time is 2 seconds after changing to the shift position (range 2).
0.5 seconds pass after shifting control.
Throttle is 0%.
Transmission fluid Temperature is 20°C (68°F) or greater.
Engine speed is greater than 400 RPM.
System voltage is 10.5 volts or greater.
No shifting
No N-D shifting
No failure detection of output speed sensor, input speed sensor, selector position, shift solenoid, lockup slip, linear solenoid, engine RPM, engine torque, throttle, transmission fluid temperature sensor

Conditions for Setting the DTC

Current gear is 1st gear.
| 1 - current 1st gear ratio / expected 1st gear ratio | is greater than 20% of the expected 1st gear ratio for 12 seconds.

Action Taken When the DTC Sets

TCM will request the illumination of MIL.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
TCM requests the ECM to limit engine torque to 150 N•m (111 lb-ft).
TCM turns Emergency mode ON.

When the Emergency mode is ON, the following conditions occur :

The transmission will operate in 4th gear when the transmission is shifted into D , M+, or 4 th gear range.

The transmission will operate in 2th gear when the transmission is shifted into 2 or M- range.

Learn control is disabled.

Lock up control is disabled.

Adaptive control is disabled.

N-D shifting is disabled.

ABS function is disabled.

Conditions for Clearing the MIL/DTC

The MIL turns OFF when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.

Cause of Failure

Shift Solenoid (SS) 1 (Stuck OFF)
Shift Solenoid (SS) 2 (Stuck ON)
Line Pressure Control (PC) Solenoid (Stuck OFF)
Inside Valve Body
TCM

DTC P1715 - Incorrect 1st Gear Ratio (SS5 : OFF, TCC Lock up PC Solenoid (SLU) : OFF)

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Install the Scan tool. With the engine OFF, turn the ignition switch to the ON position. Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu. Store Freeze Frame/Failure Records. Select Clear DTC Information from the Diagnostic Trouble Codes Information menu. Clear DTC Information. Perform one vehicle drive cycle. Is the Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
2	Select Request DTC by Status from the Diagnostic Trouble Codes Information menu. Request DTC by Status. Is DTC P1715 displayed?	-	Go to Step 3	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
3	Turn the ignition OFF. Replace the master TCM and perform simulation test again under user condition. Is DTC P1715 reappeared?	-	Go to Step 4	Replace the TCM.
4	Estimate the failure of shift solenoid 1, shift solenoid 2, line pressure control (PC) solenoid or internal valve body. Inspect the SS1 or SS2. Refer to "Unit Inspection" in this section. Is the condition of SS1 or SS2 OK?	-	Replace the valve body assembly.	Replace shift solenoid 1 (SS1) or shift solenoid 2 (SS2).

Diagnostic Trouble Code (DTC) P1719

Incorrect Shifting Detected

Conditions for Running the DTC

Emergency mode is OFF.
No failure detection of output speed sensor, engine RPM, engine torque, transmission fluid temperature sensor.

Conditions for Setting the DTC

Shift position is D, M, 2.
Transmission fluid temperature is 60°C (140°F) or greater.
TCM commands a gear shift and one of the following occurs 5 times.

tie-up

Flare

Long time shifting

Rapid shifting

Action Taken When the DTC Sets

TCM will request the illumination of MIL.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
TCM requests the ECM to limit engine torque to 150 N•m (111 lb-ft).
TCM turns Emergency mode ON.

When the Emergency mode is ON, the following conditions occur :

The transmission will operate in 4th gear when the transmission is shifted into D , M+, or 4th gear range.

The transmission will operate in 2th gear when the transmission is shifted into 2 or M- range.

Learn control is disabled.

Lock up control is disabled.

Adaptive control is disabled.

N-D shifting is disabled.

ABS function is disabled.

Conditions for Clearing the MIL/DTC

The MIL turns OFF when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.

Cause of Failure

Shift Solenoid (SS) 4 (OFF failure)
Shift Solenoid (SS) 5 (OFF failure)
Line Pressure Control (PC) Solenoid (ON/OFF failure)
Shift Pressure Control (PC) Solenoid (ON/OFF failure)
TCC Lock Up Pressure Control (PC) Solenoid (ON/OFF failure)
Inside Valve Body
TCM

DTC P1719 - Incorrect Shifting Detected

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Install the Scan tool. With the engine OFF, turn the ignition switch to the ON position. Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu. Store Freeze Frame/Failure Records. Select Clear DTC Information from the Diagnostic Trouble Codes Information menu. Clear DTC Information. Perform one vehicle drive cycle. Is the Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
2	Select Request DTC by Status from the Diagnostic Trouble Codes Information menu. Request DTC by Status. Is DTC P1719 displayed?	-	Go to Step 3	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
3	Turn the ignition OFF. Replace the master TCM and perform simulation test again under user condition. Is DTC P1719 reappeared?	-	Go to Step 4	Replace the TCM.
4	Estimate the failure of shift solenoid 4, shift solenoid 5, line pressure control solenoid, shift pressure control solenoid, TCC lock up pressure control solenoid or internal valve body. Inspect the SS4 or SS5. Refer to "Unit Inspection" in this section. Is the condition of solenoids OK?	-	Replace the valve body assembly.	Replace SS4 or SS5.

Diagnostic Trouble Code (DTC) P2533

Ignition Line Ground or Open

Conditions for Running the DTC

Emergency mode is OFF.
No failure condition of CAN BUS failure.
No detection of Lost communication with ECM.
No detection of engine RPM failure.
Engine speed is more than 400 RPM.
No detectionof system voltage low.
Ignition voltage is more than 9 volts.

Conditions for Setting the DTC

TCM detects ignition input OFF for 20 seconds.

Action Taken When the DTC Sets

TCM will request the illumination of MIL.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
TCM turns Emergency mode ON.

When the Emergency mode is ON, the following conditions occur:

The transmission will operate in 4th gear when the transmission is shifted into D ,M+ or 4 th range.

The transmission will operate in 2th gear when the transmission is shifted into 2 or M- range.

Learn control is disabled.

Lock up control is disabled.

Adaptive control is disabled.

N-D shifting is disabled.

ABS function is disabled.

Conditions for Clearing the MIL/DTC

The MIL turns OFF when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.

Cause of Failure

TCM wiring harness and connectors
Battery
TCM

DTC P2533 - Ignition Line Ground or Open

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Install the Scan tool. Turn the ignition ON, with the engine OFF. Run the engine to 400 rpm or greater. Record then clear DTC(s). Select system voltage on the scan tool. Drive the vehicle and observe the scan tool for either of the flowing conditions: Is the voltage within the values shown?	9-16v	Go to Step 4	Go to Step 2
2	Disconnect the battery cable. Measure the battery voltage. Is the voltage within the values shown?	9-16v	Go to Step 4	Go to Step 3
3	Replace the battery. Is the replacement completed?	-	System OK	-
4	Turn the headlamp ON. Turn the air conditioner ON. Run the engine to 400 rpm or greater. Observe the scan tool for system voltage. Is the voltage within the values shown?	9-16v	Go to Step 6	Go to Step 5
5	Turn the ignition LOCK. Repair the alternator circuit if necessary. Is the action completed?	-	System OK	-
6	Inspect the Ef32, Ef30, F29 fuse for an open. Was a problem found?	-	Go to Step 7	Go to Step 8
7	Inspect the Ef32, Ef30, F29 fuse for short. Replace the fuse if necessary. Is the replacement complete?	-	System OK	-
8	Turn the ignition ON. Measure the voltage of Ef32, Ef30, F29. Is the voltage within the values shown?	9-16v	Go to Step 10	Go to Step 9
9	Repair the fuse voltage supply lines for open. Is the action completed?	-	System OK	-
10	Turn the ignition LOCK. Disconnect the TCM wiring connector. Measure the resistance between Ef30 fuse and terminal 6 of the TCM wiring connector J1. Measure the resistance between Ef20 fuse and terminal 22 of the TCM wiring connector J2. Is the resistance within the values shown?	0Ω	Go to Step 12	Go to Step 11
11	Repair the circuit (between Ef32 and terminal 6 of connector J1 for short to ground and open.) Repair the circuit (between Ef20 and terminal 22 of connector J2) for short to ground and open. Is the repair completed?	-	System OK	-
12	Disconnect the X201 connector and TCM connector. Turn the ignition ON. Measure the voltage of the terminal 22 of connector J2. Is the voltage within the values shown?	9-16v	Go to Step 13	Go to Step 14
13	Repair the circuit from Ef20 to terminal 22 of the TCM connector J2 for short to battery. Is the repair complete?	-	System OK	-
14	Turn the ignition LOCK. Measure the resistance between F29 fuse and terminal 21 of the TCM wiring connector J2. Is the resistance within the values shown?	0Ω	Go to Step 17	Go to Step 15
15	Repair the circuit (between F29 and terminal 21 of connector J2) for short to ground and open. Is the repair complete?	-	System OK	-
16	Turn the ignition ON. Measure the voltage of the terminal 21 of connector J2. Is the voltage within the values shown?	9-16v	Go to Step 17	Go to Step 18
17	Repair the circuit (between F29 and terminal 21 of connector J2) for short to battery. Is the repair complete?	-	System OK	-
18	Inspect the transaxle wiring for poor electrical connectors at the transaxle connector. Look for possible bent, backed out, deformed, or damaged terminals. Check for week terminal tension. Was a condition found?	-	Verify repair and Go to Step 20	-
19	Replace the TCM. Is the replacement complete?	-	Go to Step 20	-
20	After the repair, use a scan tool "clear info" function and road test the vehicle. Review the "DTC info". Has the last test failed or is the current DTC displayed?	-	Begin diagnosis again	Repair verified Exit DTC chart

Diagnostic Trouble Code (DTC) P2757

Torque Converter Clutch (TCC) Lock up Pressure Control (PC) solenoid - Stuck OFF

Conditions for Running the DTC

Throttle is 10% or greater.
Shift position is D, M, 2 range.
0.5 seconds pass after shifting control.
Engine speed is 4000 RPM or less.
No shifting.
System voltage is greater than 10.5 volts.
TCC PC solenoid reference current is 1A or greater.
Lock up is ON.
Emergency mode is OFF.
No failure detection of output speed sensor, input speed sensor, selector position, shift solenoid, linear solenoid, CAN BUS OFF, engine RPM, engine torque, throttle, transmission fluid temperature sensor
No failure detection of ABS and wheel speed.

Conditions for Setting the DTC

(Engine RPM –input speed RPM) is greater than 100 RPM for 12 seconds.

Action Taken When the DTC Sets

TCM will request the illumination of MIL.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
TCM turns Emergency mode ON.

When the Emergency mode is ON, the following conditions occur :

The transmission will operate in 4th gear when the transmission is shifted into D or M+ range.

The transmission will operate in 2th gear when the transmission is shifted into 2 or M- range.

Learn control is disabled.

Lock up control is disabled.

Adaptive control is disabled.

N-D shifting is disabled.

ABS function is disabled.

Conditions for Clearing the MIL/DTC

The MIL turns OFF when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.

Cause of Failure

Shift Solenoid (SS) 4 (Stuck OFF)
TCC Lock Up Pressure Control (PC) Solenoid (ON/OFF Stuck)
Lock Up Clutch Failure
Inside Valve Body
TCM

DTC P2757 - Torque Converter Clutch (TCC) Lock up Pressure Control (PC) solenoid - Stuck OFF

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Install the Scan tool. With the engine OFF, turn the ignition switch to the ON position. Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu. Store Freeze Frame/Failure Records. Select Clear DTC Information from the Diagnostic Trouble Codes Information menu. Clear DTC Information. Perform one vehicle drive cycle. Is the Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
2	Select Request DTC by Status from the Diagnostic Trouble Codes Information menu. Request DTC by Status. Is DTC P2757 displayed?	-	Go to Step 3	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
3	Turn the ignition OFF. Replace the master TCM and perform simulation test again under user condition. Is DTC P2757 reappeared?	-	Go to Step 4	Replace the TCM.
4	Estimate the failure of shift solenoid (SS)4, TCC lock up pressure control solenoid, lock up clutch or shift solenoid (SS)4. Inspect SS4. Refer to "Unit Inspection" in this section. Is the condition of the solenoid OK?	-	Go to Step 5	Replace SS4.
5	Estimate the failure of TCC lock up pressure control solenoid or internal valve body. Is problem found?	-	Replace the valve body assembly.	Repair or Replace the transaxle assembly.

Diagnostic Trouble Code (DTC) P2758

Torque Converter Clutch (TCC) Lock up Pressure Control (PC) solenoid - Stuck ON

Conditions for Running the DTC

Engine torque is 44 -240 N•m.
Input speed is 3000 RPM or less
8.0 seconds pass after changing to the shift position (D,M,2).
3 minutes pass after ignition ON or reset of the TCM.
0.5 seconds pass after shifting control.
Transmission fluid temperature is 20°C (68°F).
Shift position is D,M,2 range.
Engine speed is 400 RPM or greater.
System voltage is 10.5 volts or greater.
No shifting.
Emergency mode is OFF.
No failure detection of output speed sensor, input speed sensor, selector position, shift solenoid, linear solenoid, CAN BUS OFF, engine RPM, engine torque, throttle, transmission fluid temperature sensor
No failure detection of ABS and wheel speed.

Conditions for Setting the DTC

(Engine RPM - input speed RPM) is between -50 and 50 RPM for 12 seconds.

Action Taken When the DTC Sets

TCM will request the illumination of MIL.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
TCM turns Emergency mode ON.

When the Emergency mode is ON, the following conditions occur :

The transmission will operate in 4th gear when the transmission is shifted into D or M+ range.

The transmission will operate in 2th gear when the transmission is shifted into 2 or M- range.

Learn control is disabled.

Lock up control is disabled.

Adaptive control is disabled.

N-D shifting is disabled.

ABS function is disabled.

Conditions for Clearing the MIL/DTC

The MIL turns OFF when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.

Cause of Failure

Shift Solenoid (SS) 4 (Stuck ON)
TCC Lock Up Pressure Control (PC) Solenoid (Stuck ON)
Lock Up Clutch Failure
Inside Valve Body
TCM

DTC P2758 - Torque Converter Clutch (TCC) Lock up Pressure Control (PC) solenoid - Stuck ON

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Install the Scan tool. With the engine OFF, turn the ignition switch to the ON position. Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu. Store Freeze Frame/Failure Records. Select Clear DTC Information from the Diagnostic Trouble Codes Information menu. Clear DTC Information. Perform one vehicle drive cycle. Is the Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
2	Select Request DTC by Status from the Diagnostic Trouble Codes Information menu. Request DTC by Status. Is DTC P2758 displayed?	-	Go to Step 3	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
3	Turn the ignition OFF. Replace the master TCM and perform simulation test again under user condition. Is DTC P2758 reappeared?	-	Go to Step 4	Replace the TCM.
4	Estimate the failure of shift solenoid (SS)4, TCC lock up pressure control solenoid, lock up clutch or shift solenoid (SS)4. Inspect SS4. Refer to "Unit Inspection" in this section. Is the condition of the solenoid OK?	-	Go to Step 5	Replace SS4.
5	Estimate the failure of TCC lock up pressure control solenoid or internal valve body. Is problem found?	-	Replace the valve body assembly.	Repair or Replace the transaxle assembly.

Diagnostic Trouble Code (DTC) P2763

Torque Converter Clutch (TCC) Lock up Pressure Control (PC) Solenoid Control Circuit High Voltage

Conditions for Running the DTC

Emergency mode is OFF.
System voltage is 10.2-15.5 volts.

Conditions for Setting the DTC

Torque converter clutch (TCC) pressure solenoid (PC) solenoid feedback current is greater than 1.356A for 2 seconds.
Torque converter clutch (TCC) pressure solenoid (PC) feedback circuit indicates a continuous short to voltage for 2 seconds.

Action Taken When the DTC Sets

TCM will request the illumination of MIL.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
TCM turns Emergency mode ON.

When the Emergency mode is ON, the following conditions occur :

The transmission will operate in 4th gear when the transmission is shifted into D or M+ range.

The transmission will operate in 2th gear when the transmission is shifted into 2 or M- range.

Learn control is disabled.

Lock up control is disabled.

Adaptive control is disabled.

N-D shifting is disabled.

ABS function is disabled.

Conditions for Clearing the MIL/DTC

The MIL turns OFF when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.

Cause of Failure

Wiring harness or connector between TCC lock up pressure control (PC) solenoid and TCM
TCC Lock Up Pressure Control (PC) Solenoid
TCM

DTC P2763 - Torque Converter Clutch (TCC) Lock up Pressure Control (PC) Solenoid Control Circuit High Voltage

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Install the Scan tool. With the engine OFF, turn the ignition switch to the ON position. Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu. Store Freeze Frame/Failure Records. Select Clear DTC Information from the Diagnostic Trouble Codes Information menu. Clear DTC Information. Perform one vehicle drive cycle. Is the Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
2	Select Request DTC by Status from the Diagnostic Trouble Codes Information menu. Request DTC by Status. Is DTC P2763 displayed?	-	Go to Step 3	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
3	Turn the ignition OFF. Inspect the resistance between the vehicle harness and TCC lock up pressure control solenoid. Refer to "Unit Inspection" in this section. Disconnect the TCM connector J1 (X-1) and inspect the resistance between the terminal 5 and 3. Is the measurement within the specified value?	20°C (68°F) : 5.0-5.6Ω	Go to Step 4	Go to Step 5
4	Estimate the failure of between the vehicle wiring harness connector and TCM. Inspect the connector. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the connectors (C-1). Is the connection condition OK?	-	Go to Step 6	Repair the wiring harness connectors.
5	Estimate the failure of between the vehicle harness and TCC lock up pressure control solenoid. Disconnect the connector (X-3) of T/M wire and inspect the resistance between TCC lock up pressure control solenoid connector terminal 10 and 3. Is the measurement within the specified value?	20°C (68°F) : 5.0-5.6Ω	Go to Step 7	Go to Step 8
6	Replace the master TCM. Perform the reproducing test under user condition after confirming no DTC. Is DTC displayed?	-	Repair the temporary connection failure of connector. (Refer to "Wiring Harness and Connector Inspection" in this section.)	Replace the TCM.
7	Estimate the failure of the vehicle wiring harness or between connectors. Inspect continuity and short circuit for the vehicle wiring harness and inspect the connection condition between connectors (C-3). Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Repair the temporary connection failure of connector. (Refer to "Wiring Harness and Connector Inspection" in this section.)	Replace the vehicle harness or adjustment between connectors.
8	Estimate the failure of T/M wire or between connectors of TCC lock up pressure control solenoid. Inspect the TCC lock up pressure control solenoid. Refer to "Unit Inspection" in this section. Is the problem found?	-	Replace the valve body assembly.(No replacement of TCC lock up pressure control solenoid by itself)	Go to Step 9
9	Estimate the failure of T/M wire. Inspect continuity and short circuit for the T/M wire and inspect the connection condition between connectors (C-5). Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Repair the temporary connection failure of connector. (Refer to "Wiring Harness and Connector Inspection" in this section.)	Replace the T/M wire or adjustment between connectors.

Diagnostic Trouble Code (DTC) P2764

Torque Converter Clutch (TCC) Lock up Pressure Control (PC) Solenoid Control Circuit Low Voltage

Conditions for Running the DTC

Emergency mode is OFF.
System voltage is 10.2-15.5 volts.

Conditions for Setting the DTC

Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid feedback current is less than 0.092A for 12.5 seconds.
Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid feedback circuit indicates a continuous open or short to ground for 12.5 seconds.

Action Taken When the DTC Sets

TCM will request the illumination of MIL.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
TCM turns Emergency mode ON.

When the Emergency mode is ON, the following conditions occur :

The transmission will operate in 4th gear when the transmission is shifted into D or M+ range.

The transmission will operate in 2th gear when the transmission is shifted into 2 or M- range.

Learn control is disabled.

Lock up control is disabled.

Adaptive control is disabled.

N-D shifting is disabled.

ABS function is disabled.

Conditions for Clearing the MIL/DTC

The MIL turns OFF when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.

Cause of Failure

Wiring harness or connector between TCC lock up pressure control (PC) solenoid and TCM
TCC Lock Up Pressure Control (PC) Solenoid
TCM

DTC P2764 - Torque Converter Clutch (TCC) Lock up Pressure Control (PC) Solenoid Control Circuit Low Voltage

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Install the Scan tool. With the engine OFF, turn the ignition switch to the ON position. Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu. Store Freeze Frame/Failure Records. Select Clear DTC Information from the Diagnostic Trouble Codes Information menu. Clear DTC Information. Perform one vehicle drive cycle. Is the Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
2	Select Request DTC by Status from the Diagnostic Trouble Codes Information menu. Request DTC by Status. Is DTC P2764 displayed?	-	Go to Step 3	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
3	Turn the ignition OFF. Inspect the resistance between the vehicle harness and TCC lock up pressure control solenoid. Refer to "Unit Inspection" in this section. Disconnect the TCM connector J1 (X-1) and inspect the resistance between the terminal 5 and 3. Is the measurement within the specified value?	20°C (68°F) : 5.0-5.6Ω	Go to Step 4	Go to Step 5
4	Estimate the failure of between the vehicle wiring harness connector and TCM. Inspect the connector. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the connectors (C-1). Is the connection condition OK?	-	Go to Step 6	Repair the wiring harness connectors.
5	Estimate the failure of between the vehicle harness and TCC lock up pressure control solenoid. Disconnect the connector (X-3) of T/M wire and inspect the resistance between TCC lock up pressure control solenoid connector terminal 10 and 3. Is the measurement within the specified value?	20°C (68°F) : 5.0-5.6Ω	Go to Step 7	Go to Step 8
6	Replace the master TCM. Perform the reproducing test under user condition after confirming no DTC. Is DTC displayed?	-	Repair the temporary connection failure of connector. (Refer to "Wiring Harness and Connector Inspection" in this section.)	Replace the TCM.
7	Estimate the failure of the vehicle wiring harness or between connectors. Inspect continuity and short circuit for the vehicle wiring harness and inspect the connection condition between connectors (C-3). Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Repair the temporary connection failure of connector. (Refer to "Wiring Harness and Connector Inspection" in this section.)	Replace the vehicle harness or adjustment between connectors.
8	Estimate the failure of T/M wire or between connectors of TCC lock up pressure control solenoid. Inspect the TCC lock up pressure control solenoid. Refer to "Unit Inspection" in this section. Is the problem found?	-	Replace the valve body assembly.(No replacement of TCC lock up pressure control solenoid by itself)	Go to Step 9
9	Estimate the failure of T/M wire. Inspect continuity and short circuit for the T/M wire and inspect the connection condition between connectors (C-5). Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Repair the temporary connection failure of connector. (Refer to "Wiring Harness and Connector Inspection" in this section.)	Replace the T/M wire or adjustment between connectors.

Diagnostic Trouble Code (DTC) U0001

Can Bus OFF Counter Overrun

Conditions for Running the DTC

Voltage supplied to the module is in the normal operating voltage range.
The vehicle power mode requires communication to occur.

Conditions for Setting the DTC

A total non communication condition is detected on CAN serial data circuit.

Action Taken When the DTC Sets

TCM will request the illumination of MIL.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
TCM requests the ECM to limit engine torque to 270 N•m (199 lb-ft).
TCM turns Emergency mode ON.

When the Emergency mode is ON, the following conditions occur:

The transmission will operate in 4th gear when the transmission is shifted into D or M+ range.

The transmission will operate in 2th gear when the transmission is shifted into 2 or M- range.

Learn control is disabled.

Lock up control is disabled.

Adaptive control is disabled.

N-D shifting is disabled.

ABS function is disabled.

Conditions for Clearing the MIL/DTC

The MIL turns OFF when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.
A current DTC clears when the malfunction is no longer present.

Cause of Failure

Wiring harness or connector
Modules

DTC U0001 - Can Bus OFF Counter Overrun

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Disconnect all modules that communicate on controller area network (CAN). Test all CAN circuits between modules for the following : Short to ground Short to voltage Open Short between CAN high and CAN low circuits. Did you find and correct the condition?	-	Go to Step 7	Go to Step 2
2	Reconnect the module that set the DTC. If the DTC was set in multiple modules, reconnect the ECM. Turn ON the ignition, with the engine OFF. Retrieve DTCs from the module. Does the DTC U0001 still set as current?	-	Go to Step 5	Go to Step 3
3	Repeat the following steps until the DTC is set or all modules are connected. Turn the ignition OFF. Reconnect the other disconnected modules one at a time in the following order : ECM or TCM ABS Module BCM Turn the ignition ON, with the engine OFF. Retrieve DTCs from the first connected module, in the previous step. Does the scan tool display DTC U0001 as current?	-	Go to Step 4	Repair the temporary connection failure. (Refer to "Wiring Harness and Connector Inspection" in this section.)
4	Turn the ignition OFF. Disconnect the last module connected. Inspect for poor connections at CAN circuits of the suspected module. Refer to "Wiring Harness and Connector Inspection" in this section. Did you find and correct the condition?	-	Go to Step 7	Go to Step 6
5	Turn the ignition OFF. Disconnect the module that set the DTC as current. Inspect for poor connections at CAN circuits of the suspected module. Refer to "Wiring Harness and Connector Inspection" in this section. Did you find and correct the condition?	-	Go to Step 7	Go to Step 6
6	Replace the suspected module. Did you complete the replacement?	-	Go to Step 7	-
7	Connect all modules and connectors. Connect the scan tool to the data link connector (DLC). Turn the ignition ON, with the engine OFF. Retrieve DTCs. Is the DTC U0001 still set as current?	-	Go to Step 1	System OK

Diagnostic Trouble Code (DTC) U0100

Lost Communication With ECM

Conditions for Running the DTC

3 seconds pass after ignition ON.
Emergency mode is OFF.
No detection of BUS OFF failure.
Voltage supplied to the modules is in the normal operating voltage range.
The vehicle power mode requires serial data communication to occur.

Conditions for Setting the DTC

A supervised periodic message that includes the transmitter module availability has not been received.

Action Taken When the DTC Sets

TCM will request the illumination of MIL.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
TCM requests the ECM to limit engine torque to 270 N•m (199 lb-ft).
TCM turns Emergency mode ON.

When the Emergency mode is ON, the following conditions occur :

The transmission will operate in 4th gear when the transmission is shifted into D or M+ range.

The transmission will operate in 2th gear when the transmission is shifted into 2 or M- range.

Learn control is disabled.

Lock up control is disabled.

Adaptive control is disabled.

N-D shifting is disabled.

ABS function is disabled.

Conditions for Clearing the MIL/DTC

The MIL turns OFF when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.
A current DTC clears the malfunction is no longer present.

Cause of Failure

A poor connection at the inoperative module may cause this code to set.
An improperly powered module may cause this code to set.

DTC U0100 - Lost Communication With ECM

Step	Action	Value(s)	Yes	No
1	Test the following circuits of the module that module is not communicating for an open or a short to ground : The battery positive voltage input circuits The battery positive voltage output circuits The ignition voltage input circuits The ignition voltage output circuits The switched battery positive voltage circuits. Did you find and correct the condition?	-	Go to Step 6	Go to Step 2
2	Turn the ignition OFF. Test the ground circuits of the module that is not communicating for an open. If the module is BCM, test its serial data circuit for an open, also. Did you find and correct the condition?	-	Go to Step 6	Go to Step 3
3	Test the high speed CAN circuits of the module that is not communicating for an open. Did you find and correct the condition?	-	Go to Step 6	Go to Step 4
4	Inspect the harness connectors of the module that is not communicating for poor connections and terminal tension at the following circuits : The battery positive voltage input circuits The battery positive voltage output circuits The ignition voltage input circuits The ignition voltage output circuits The switched battery positive voltage circuits The ground circuits The high speed CAN circuits The serial data circuit, if the module is BCM. Did you find and correct the condition?	-	Go to Step 6	Go to Step 5
5	Replace the module that is not communicating. Did you find and correct the condition?	-	Go to Step 6	-
6	Use the scan tool in order to clear the DTCs. Does the scan tool still display other current DTCs?	-	Go to the applicable DTC table.	-

Diagnostic Trouble Code (DTC) U0121

Lost Communication With ABS

Conditions for Running the DTC

3 seconds pass after ignition ON.
Emergency mode is OFF.
No detection of BUS OFF failure.
Voltage supplied to the modules is in the normal operating voltage range.
The vehicle power mode requires serial data communication to occur.

Conditions for Setting the DTC

A supervised periodic message that includes the transmitter module availability has not been received.

Action Taken When the DTC Sets

TCM will request the BCM to illuminate the service vehicle soon (SVS) lamp.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
Learn control is disabled.
Adaptive control is disabled.
ABS function is disabled.

Conditions for Clearing the SVS Lamp/DTC

TCM turns OFF the SVS lamp when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.
A current DTC clears the malfunction is no longer present.

Cause of Failure

A poor connection at the inoperative module may cause this code to set.
An improperly powered module may cause this code to set.

DTC U0121 - Lost Communication With ABS

Step	Action	Value(s)	Yes	No
1	Test the following circuits of the module that module is not communicating for an open or a short to ground : The battery positive voltage input circuits The battery positive voltage output circuits The ignition voltage input circuits The ignition voltage output circuits The switched battery positive voltage circuits. Did you find and correct the condition?	-	Go to Step 6	Go to Step 2
2	Turn the ignition OFF. Test the ground circuits of the module that is not communicating for an open. If the module is BCM, test its serial data circuit for an open, also. Did you find and correct the condition?	-	Go to Step 6	Go to Step 3
3	Test the high speed CAN circuits of the module that is not communicating for an open. Did you find and correct the condition?	-	Go to Step 6	Go to Step 4
4	Inspect the harness connectors of the module that is not communicating for poor connections and terminal tension at the following circuits : The battery positive voltage input circuits The battery positive voltage output circuits The ignition voltage input circuits The ignition voltage output circuits The switched battery positive voltage circuits The ground circuits The high speed CAN circuits The serial data circuit, if the module is BCM. Did you find and correct the condition?	-	Go to Step 6	Go to Step 5
5	Replace the module that is not communicating. Did you find and correct the condition?	-	Go to Step 6	-
6	Use the scan tool in order to clear the DTCs. Does the scan tool still display other current DTCs?	-	Go to the applicable DTC table.	-

Diagnostic Trouble Code (DTC) U0140

Lost Communication With BCM

Conditions for Running the DTC

3 seconds pass after ignition ON.
Emergency mode is OFF.
No detection of BUS OFF failure.
Voltage supplied to the modules is in the normal operating voltage range.
The vehicle power mode requires serial data communication to occur.

Conditions for Setting the DTC

A supervised periodic message that includes the transmitter module availability has not been received.

Action Taken When the DTC Sets

TCM will request the BCM to illuminate the service vehicle soon (SVS) lamp.
TCM records the operating condition when the Conditions for Setting the DTC are met TCM stores this information as Failure Record.
TCM stores DTC in TCM history.

Conditions for Clearing the SVS Lamp/DTC

TCM turns OFF the SVS lamp when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.
A current DTC clears the malfunction is no longer present.

Cause of Failure

A poor connection at the inoperative module may cause this code to set.
An improperly powered module may cause this code to set.

DTC U0140 - Lost Communication With BCM

Step	Action	Value(s)	Yes	No
1	Test the following circuits of the module that module is not communicating for an open or a short to ground : The battery positive voltage input circuits The battery positive voltage output circuits The ignition voltage input circuits The ignition voltage output circuits The switched battery positive voltage circuits. Did you find and correct the condition?	-	Go to Step 6	Go to Step 2
2	Turn the ignition OFF. Test the ground circuits of the module that is not communicating for an open. If the module is BCM, test its serial data circuit for an open, also. Did you find and correct the condition?	-	Go to Step 6	Go to Step 3
3	Test the high speed CAN circuits of the module that is not communicating for an open. Did you find and correct the condition?	-	Go to Step 6	Go to Step 4
4	Inspect the harness connectors of the module that is not communicating for poor connections and terminal tension at the following circuits : The battery positive voltage input circuits The battery positive voltage output circuits The ignition voltage input circuits The ignition voltage output circuits The switched battery positive voltage circuits The ground circuits The high speed CAN circuits The serial data circuit, if the module is BCM. Did you find and correct the condition?	-	Go to Step 6	Go to Step 5
5	Replace the module that is not communicating. Did you find and correct the condition?	-	Go to Step 6	-
6	Use the scan tool in order to clear the DTCs. Does the scan tool still display other current DTCs?	-	Go to the applicable DTC table.	-

Diagnostic Trouble Code (DTC) U0401

Invalid Data Received From ECM

Conditions for Running the DTC

3 seconds pass after ignition ON.
Emergency mode is OFF.
No DTCs U0001,U0100.

Conditions for Setting the DTC

TCM receives invalid signal of ECM data from ECM for 4 seconds.

Action Taken When the DTC Sets

TCM will request the BCM to illuminate the service vehicle soon (SVS) lamp.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.

Conditions for Clearing the SVS Lamp/DTC

TCM turns OFF the SVS lamp when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.

Cause of Failure

Wiring harness or connector between ECM and TCM
ECM
TCM

DTC U0401 - Invalid Data Received From ECM

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Install the Scan tool. With the engine OFF, turn the ignition switch to the ON position. Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu. Store Freeze Frame/Failure Records. Select Clear DTC Information from the Diagnostic Trouble Codes Information menu. Clear DTC Information. Perform one vehicle drive cycle. Does the SVS lamp illuminate?	-	Go to Step 2	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
2	Select Request DTC by Status from the Diagnostic Trouble Codes Information menu. Request DTC by Status. Is DTC U0401 displayed?	-	Go to Step 3	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
3	Turn the ignition OFF. Disconnect the Engine Control Module (ECM) and the Transmission Control Module (TCM). Check for an open or a short to ground in the wire between the TCM connector J1 terminal 17 and ECM connector J1 terminal 30 (LD9). (84 of connector J1 : LLW, 42 of connector J2 : LU1) Is the problem found?	-	Go to Step 5	Go to Step 4
4	Check for an open or short to ground in the wire between the TCM connector J1, 7 and ECM connector J1 terminal 49. (83 of conector J1 : LLW, 55 of connector J2 : LU1) Is the problem found?	-	Go to Step 5	Go to Step 6
5	Change the unshielded twisted pair between TCM and ECM or repair the connector terminal as needed. Using the scan tool, clear the DTCs. Start the engine and idle at normal operating temperature. Operate the vehicle. Does the scan tool indicate that this diagnostic has run and passed?	-	Go to Step 8	Go to Step 1
6	Replace the TCM. Using the scan tool, clear the DTCs. Start the engine and idle at normal operating temperature. Operate the vehicle. Perform the reproducing test under user condition after confirming no DTC. Does the scan tool indicate that this diagnostic has run and passed?	-	Go to Step 8	Go to Step 7
7	Replace the ECM. Using the scan tool, clear the DTCs. Start the engine and idle at normal operating temperature. Operate the vehicle. Perform the reproducing test under user condition after confirming no DTC. Does the scan tool indicate that this diagnostic has run and passed?	-	Go to Step 8	-
8	Check if any additional DTCs are set. Are any DTCs displayed that have not been diagnosed?	-	Go to applicable DTC table	System OK

Diagnostic Trouble Code (DTC) U0422

Up and Down Mode Switch Failure (Invalid Data Received From BCM)

Conditions for Running the DTC

3 seconds pass after ignition ON.
Emergency mode is OFF.
No DTCs U0001,U0140.

Conditions for Setting the DTC

TCM receives the invalid signal of the up and down mode request for 4 seconds.

Action Taken When the DTC Sets

TCM will request the BCM to illuminate the service vehicle soon (SVS) lamp.
TCM records the operating condition when the Conditions for Setting the DTC are met. TCM stores this information as Failure Record.
TCM stores DTC in TCM history.
Up and down (manual) mode shifting is inhibited.

Conditions for Clearing the SVS Lamp/DTC

TCM turns OFF the SVS lamp when no failure is detected for three consecutive driving cycles.
The scan tool can clear the DTC from the TCM history.
TCM clears the DTC from the TCM history memory after forty consecutive warm-up cycles without fault.

Cause of Failure

Wiring harness between the up and down mode switch and BCM
Up and down mode switch
BCM

Diagnostic Aids

Shift lever position	Output terminal (6)
D	-0.3 – 0.3V
M	0.68 - 0.78V
M+	2.18 - 2.55V
M-	1.11 - 1.30V

DTC U0422 - Up and Down Mode Switch Failure (Invalid Data Received From BCM)

Step	Action	Value(s)	Yes	No
1	Turn the ignition OFF. Install the Scan tool. With the engine OFF, turn the ignition switch to the ON position. Select Store Freeze Frame/Failure Records from the Diagnostic Trouble Codes Information menu. Store Freeze Frame/Failure Records. Select Clear DTC Information from the Diagnostic Trouble Codes Information menu. Clear DTC Information. Perform one vehicle drive cycle. Is the Winter Lamp blinking?	-	Go to Step 2	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
2	Select Request DTC by Status from the Diagnostic Trouble Codes Information menu. Request DTC by Status. Is DTC U0422 displayed?	-	Go to Step 3	Repair the temporary connection failure of connector (Refer to "Wiring Harness and Connector Inspection" in this section.)
3	Inspect the 12V reference circuit for a short to ground or open between the up and down mode switch and BCM. Is problem found?	-	Repair the wiring circuit for a short to ground or open.	Go to Step 4
4	Inspect the signal circuit for an open, short to voltage or short to ground between the up and down mode switch and BCM. Is problem found?	-	Repair the signal circuit for an open , short to voltage or short to ground.	Go to Step 5
5	Inspect the circuit for an open, short to voltage or short to ground between the up and down mode switch and ground. Is problem found?	-	Repair the circuit for an open , short to voltage or short to ground.	Go to Step 6
6	With the ignition ON, inspect the voltage for the output terminal of the up and down mode switch shifting the gear shift lever. Refer to Diagnostic Aids. Is the measurement within the specified value?	-	Replace the BCM.	Replace the shift control lever assembly.