Service Manual2011 Aveo Diagnostic Trouble Code (DTC) P0741

Aveo

Diagnostic Trouble Code (DTC) P0741

Torque Converter Clutch (TCC) Circuit Performance or Stuck OFF

Conditions for Running the DTC

Engine revolution is greater than 600 rpm.
No emergency mode.
5 seconds have passed after P, R, N, 2, L→D.
2 seconds have passed after gear selector changed.
Lock-up ON.
4, 5 seconds have passed after lock-up OFF to ON.
Oil temperature is 20°C (68°F) or greater.
No failure of input speed sensor/output speed sensor/TR switch/engine coolant temperature sensor/throttle position sensor/shift solenoid A, B/engine revolution.

Conditions for Setting the DTC

Above detection continuously occurs 1 time.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects failures on two consecutive ignition cycles.

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.

Cause of Failure

Lockup solenoid
Inside A/T
Inside valve body

DTC P0741 - Torque Converter Clutch (TCC) Circuit Performance or 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 two vehicle drive cycles. Is the Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0741 displayed?	-	Go to Step 3	Go to Step 4
3	Warm up the engine(coolant temperature: over 60°C (140°F). Connect the scan tool to check the vehicle speed, engine revolution and transmission input speed. Accelerate to 100km/h (62mph). Perform the accelerator ON by D range. Measure the rotary difference of the engine revolution and the transmission input speed. Is the rotary difference more than 100rpm within the specified value?	3 seconds	Go to Step 4	Go to Step 5
4	Check the ATF conditions. Is the ATF condition OK?	-	Go to Step 6	Replace the ATF.
5	Inspect the lock up solenoid. Refer to “Unit Inspection” in this section. Is the inspection OK?	-	Go to Step 7	Replace the lock up solenoid.
6	Clean the connectors. Is action completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-
7	Replace the valve body or the transmission assembly. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-

Diagnostic Trouble Code (DTC) P0742

Torque Converter Clutch (TCC) Circuit Stuck ON

Conditions for Running the DTC

Engine revolution is greater than 600 rpm.
No emergency mode.
5 seconds have passed after P, R, N, 2, L→D.
2 seconds have passed after gear selector changed.
Lock-up OFF.
4.5 seconds have passed after lock-up ON to OFF.
Oil temperature is 20°C (68°F) or greater.
No failure of input speed sensor/output speed sensor/TR switch/engine coolant temperature sensor/throttle position sensor/shift solenoid A, B/engine revolution.

Conditions for Setting the DTC

Above detection continuously occurs 1 time.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects failures on two consecutive ignition cycles.

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.

Cause of Failure

Lockup solenoid
Inside A/T
Inside valve body

DTC P0742 - Torque Converter Clutch (TCC) Circuit 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 two vehicle drive cycles. Is the Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0742 displayed?	-	Go to Step 3	Go to Step 4
3	Warm up the engine(coolant temperature: over 60°C (140°F). Connect the scan tool to check the vehicle speed, engine revolution and transmission input speed. Accelerate to 40km/h (25mph). Perform the accelerator ON/OFF by 2 range hold. Measure the rotary difference of the engine revolution and the transmission input speed. Is the rotary difference less than the specified value?	50 rpm	Go to Step 5	Go to Step 4
4	Check the ATF conditions. Is the ATF condition OK?	-	Go to Step 6	Replace the ATF.
5	Inspect the lock up solenoid. Refer to “Unit Inspection” in this section. Is the inspection OK?	-	Go to Step 7	Replace the lock up solenoid.
6	Clean the connectors. Is action completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-
7	Replace the valve body or the transmission assembly. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-

Diagnostic Trouble Code (DTC) P0751

Shift Solenoid 1 (SS1) Performance or Stuck OFF

Conditions for Running the DTC

Engine revolution is 600 rpm or greater.
No emergency mode.
5 seconds have passed after P, R, N, 2, L→D.
2 seconds have passed after gear selector changed.
Vehicle speed is 15 km/h (9mph) or greater.
Engine coolant temperature is 60°C (140°F) or greater.
Oil temperature is 20°C (68°F) or greater.
No failure of input speed sensor/output speed sensor/TR switch/engine coolant temperature sensor/throttle position sensor/shift solenoid A, B/engine revolution.

Conditions for Setting the DTC

Above detection continuously occurs 1 time.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects failures on two consecutive ignition cycles.

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.

Diagnostic Aids

Condition	Physical sense in accordance with the scan tool display
Scan tool indication	1st	2nd	3rd	4th
Vehicle gear range (Abnormal)	4th	3rd	3rd	4th

Cause of Failure

Shift Solenoid 1 (SS1)
Inside Valve Body
Inside A/T

DTC P0751 - Shift Solenoid 1 (SS1) Performance or 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 two vehicle drive cycles. Is the Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0751 displayed?	-	Go to Step 3	Go to Step 4
3	Warm up the engine(coolant temperature: over 60°C (140°F). Connect the scan tool to check the vehicle speed, throttle opening and gear range. Confirm the shifting condition when accelerated to 80km/h(50mph) between the throttle opening 20% to 50%. Refer to "Diagnostic Aids". Is the gear shift condition normal?	-	Go to Step 4	Go to Step 5
4	Check the ATF conditions. Is the ATF condition OK?	-	Go to Step 6	Replace the ATF.
5	Inspect the shift solenoid(SS) 1. Refer to "Unit Inspection" in this section. Is the inspection OK?	-	Go to Step 7	Replace the SS1.
6	Clean the connectors. Is action completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-
7	Replace the valve body or the transmission assembly. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-

Diagnostic Trouble Code (DTC) P0752

Shift Solenoid 1 (SS1) Performance or Stuck ON

Conditions for Running the DTC

Engine revolution is 600 rpm or greater.
No emergency mode.
5 seconds have passed after P, R, N, 2, L→D.
2 seconds have passed after gear selector changed.
Vehicle speed is 15 km/h (9mph) or greater.
Engine coolant temperature is 60°C (140°F) or greater.
Oil temperature is 20°C (68°F) or greater.
No failure of input speed sensor/output speed sensor/TR switch/engine coolant temperature sensor/throttle position sensor/shift solenoid A, B/engine revolution.

Conditions for Setting the DTC

Above detection continuously occurs 1 time.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects failures on two consecutive ignition cycles.

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.

Diagnostic Aids

Condition	Physical sense in accordance with the scan tool display
Scan tool indication	1st	2nd	3rd	4th
Vehicle gear range (Abnormal)	1st	2nd	2nd	1st

Cause of Failure

Shift Solenoid 1 (SS1)
Inside Valve Body
Inside A/T

DTC P0752 - Shift Solenoid 1 (SS1) Performance or 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 two vehicle drive cycles. Is the Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0752 displayed?	-	Go to Step 3	Go to Step 4
3	Warm up the engine(coolant temperature: over 60°C (140°F). Connect the scan tool to check the vehicle speed, throttle opening and gear range. Confirm the shifting condition when accelerated to 80km/h(50mph) between the throttle opening 20% to 50%. Refer to "Diagnostic Aids". Is the gear shift condition normal?	-	Go to Step 4	Go to Step 5
4	Check the ATF conditions. Is the ATF condition OK?	-	Go to Step 6	Replace the ATF.
5	Inspect the shift solenoid(SS) 1. Refer to "Unit Inspection" in this section. Is the inspection OK?	-	Go to Step 7	Replace the SS1.
6	Clean the connectors. Is action completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-
7	Replace the valve body or the transmission assembly. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-

Diagnostic Trouble Code (DTC) P0756

Shift Solenoid 2 (SS2) Performance or Stuck OFF

Conditions for Running the DTC

Engine revolution is 600 rpm or greater.
No emergency mode.
5 seconds have passed after P, R, N, 2, L→D.
2 seconds have passed after gear selector changed.
Vehicle speed is 15 km/h (9mph) or greater.
Engine coolant temperature is 60°C (140°F) or greater.
Oil temperature is 20°C (68°F) or greater.
No failure of input speed sensor/output speed sensor/TR switch/engine coolant temperature sensor/throttle position sensor/shift solenoid A, B/engine revolution.

Conditions for Setting the DTC

Above detection continuously occurs 1 time.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects failures on two consecutive ignition cycles.

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.

Diagnostic Aids

Condition	Physical sense in accordance with the scan tool display
Scan tool indication	1st	2nd	3rd	4th
Vehicle gear range (Abnormal)	2nd	2nd	3rd	3rd

Cause of Failure

Shift Solenoid 2 (SS2)
Inside Valve Body
Inside A/T

DTC P0756 - Shift Solenoid 2 (SS2) Performance or 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 two vehicle drive cycles. Is the Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0756 displayed?	-	Go to Step 3	Go to Step 4
3	Warm up the engine(coolant temperature: over 60°C (140°F). Connect the scan tool to check the vehicle speed, throttle opening and gear range. Confirm the shifting condition when accelerated to 80km/h(50mph) between the throttle opening 20% to 50%. Refer to "Diagnostic Aids". Is the gear shift condition normal?	-	Go to Step 4	Go to Step 5
4	Check the ATF conditions. Is the ATF condition OK?	-	Go to Step 6	Replace the ATF.
5	Inspect the shift solenoid(SS) 2. Refer to "Unit Inspection" in this section. Is the inspection OK?	-	Go to Step 7	Replace the SS2.
6	Clean the connectors. Is action completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-
7	Replace the valve body or the transmission assembly. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-

Diagnostic Trouble Code (DTC) P0757

Shift Solenoid 2 (SS2) Performance or Stuck ON

Conditions for Running the DTC

Engine revolution is 600 rpm or greater.
No emergency mode.
5 seconds have passed after P, R, N, 2, L→D.
2 seconds have passed after gear selector changed.
Vehicle speed is 15 km/h (9mph) or greater.
Engine coolant temperature is 60°C (140°F) or greater.
Oil temperature is 20°C (68°F) or greater.
No failure of input speed sensor/output speed sensor/TR switch/engine coolant temperature sensor/throttle position sensor/shift solenoid A, B/engine revolution.

Conditions for Setting the DTC

Above detection continuously occurs 1 time.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects failures on two consecutive ignition cycles.

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.

Diagnostic Aids

Condition	Physical sense in accordance with the scan tool display
Scan tool indication	1st	2nd	3rd	4th
Vehicle gear range (Abnormal)	1st	1st	4th	4th

Cause of Failure

Shift Solenoid 2 (SS2)
Inside Valve Body
Inside A/T

DTC P0757 - Shift Solenoid 2 (SS2) Performance or 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 two vehicle drive cycles. Is the Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0757 displayed?	-	Go to Step 3	Go to Step 4
3	Warm up the engine(coolant temperature: over 60°C (140°F). Connect the scan tool to check the vehicle speed, throttle opening and gear range. Confirm the shifting condition when accelerated to 80km/h(50mph) between the throttle opening 20% to 50%. Refer to "Diagnostic Aids". Is the gear shift condition normal?	-	Go to Step 4	Go to Step 5
4	Check the ATF conditions. Is the ATF condition OK?	-	Go to Step 6	Replace the ATF.
5	Inspect the shift solenoid(SS) 2. Refer to "Unit Inspection" in this section. Is the inspection OK?	-	Go to Step 7	Replace the SS2.
6	Clean the connectors. Is action completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-
7	Replace the valve body or the transmission assembly. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-

Diagnostic Trouble Code (DTC) P0787

Timing Solenoid (ST) Electrical (Ground Short)

Conditions for Running the DTC

No emergency mode.
TCM detects that the OFF signal of the Timing Solenoid (ST) monitor, when ST driver ouputs the ON signal (0V) for 0.1 seconds continuously.

Conditions for Setting the DTC

Above detection continuously occurs 3 times.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects a failure on the first ignition cycle.
After failure decision : emergency mode

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
TCM detects the ON signal of the ST monitor, when ST driver outputs the ON signal for 100 ms.

Cause of Failure

Wiring harness or connector between Timing Solenoid (ST) and TCM
ST
TCM

DTC P0787 - Timing Solenoid (ST) Electrical (Ground Short)

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 Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0787 displayed?	-	Go to Step 3	Inspect the temporary connection failure of the connector and repair it if necessary. Refer to "Wiring Harness and Connector Inspection" in this section.
3	Turn the ignition OFF. Inspect the resistance between the vehicle harness and timing solenoid(ST). Refer to "Unit Inspection" in this section. Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A14 and A23. Is the measurement within the specified value?	20°C (68°F) 11-16 Ω	Go to Step 4	Go to Step 5
4	Inspect the vehicle side wiring harness and connector. Inspect the continuity and short circuit for the corresponding wiring harness. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the corresponding connectors. Refer to "Wiring Harness and Connector Inspection" in this section. Is the inspection OK?	-	Go to Step 6	Replace the vehicle harness or adjustment between the connectors.
5	Inspect the resistance between T/M wire and ST solenoid. Disconnect the connector (X-3) of T/M wire and inspect the resistance between ST solenoid connector terminal 2 and ground. Is the measurement within the specified value?	20°C (68°F) 11-16 Ω	Go to Step 7	Go to Step 8
6	Clean the connector. Is the failure resolved?	-	System OK	Go to Step 10
7	Inspect the continuity and short circuit for the corresponding wiring harness. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the corresponding connectors. Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Clean the connectors.	Replace the vehicle harness or adjustment between the connectors.
8	Inspect the ST solenoid. Refer to "Unit Inspection" in this section. Is the inspection OK?	-	Go to Step 9	Replace the ST solenoid.
9	Inspect the continuity and short circuit for the T/M wire. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the connectors(C-6). Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Clean the connectors.	Replace the T/M wire.
10	Replace the TCM. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-

Diagnostic Trouble Code (DTC) P0788

Timing Solenoid (ST) Electrical (Open or Power Short)

Conditions for Running the DTC

No emergency mode.
TCM detects that the ON signal (12V) of the Timing Solenoid(ST) monitor, when ST driver ouputs the OFF signal (0V) for 0.5 seconds continuously.

Conditions for Setting the DTC

Above detection continuously occurs 3 times.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects a failure on the first ignition cycle.
After failure decision : emergency mode

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
TCM detects the OFF signal of the ST monitor when ST driver outputs the OFF signal for 100 ms continuously.

Cause of Failure

Wiring harness or connector between Timing Solenoid (ST) and TCM
ST
TCM

DTC P0788 - Timing Solenoid (ST) Electrical (Open or Power Short)

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 Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0788 displayed?	-	Go to Step 3	Inspect the temporary connection failure of the connector and repair it if necessary. Refer to "Wiring Harness and Connector Inspection" in this section.
3	Turn the ignition OFF. Inspect the resistance between the vehicle harness and timing solenoid(ST). Refer to "Unit Inspection" in this section. Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A14 and A23. Is the measurement within the specified value?	20°C (68°F) 11-16 Ω	Go to Step 4	Go to Step 5
4	Inspect the vehicle side wiring harness and connector. Inspect the continuity and short circuit for the corresponding wiring harness. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the corresponding connectors. Refer to "Wiring Harness and Connector Inspection" in this section. Is the inspection OK?	-	Go to Step 6	Replace the vehicle harness or adjustment between the connectors.
5	Inspect the resistance between T/M wire and ST solenoid. Disconnect the connector (X-3) of T/M wire and inspect the resistance between ST solenoid connector terminal 2 and ground. Is the measurement within the specified value?	20°C (68°F) 11-16 Ω	Go to Step 7	Go to Step 8
6	Clean the connector. Is the failure resolved?	-	System OK	Go to Step 10
7	Inspect the continuity and short circuit for the corresponding wiring harness. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the corresponding connectors. Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Clean the connectors.	Replace the vehicle harness or adjustment between the connectors.
8	Inspect the ST solenoid. Refer to "Unit Inspection" in this section. Is the inspection OK?	-	Go to Step 9	Replace the ST solenoid.
9	Inspect the continuity and short circuit for the T/M wire. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the connectors(C-6). Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Clean the connectors.	Replace the T/M wire.
10	Replace the TCM. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-

Diagnostic Trouble Code (DTC) P0962

Pressure Control Solenoid (PCS) Electrical (Low)

Conditions for Running the DTC

No emergency mode.
Input A/D value is 68 (0.018V) or less for 0.5 seconds continuously.

Conditions for Setting the DTC

Above detection continuously occurs 25 times.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects a failure on the first ignition cycle.
No lockup control
No engine torque reduction control
No engagement pressure control
No 4th gear
No self-learning control
After failure decision : emergency mode

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
TCM detects the input A/D value is between 0.02V and 0.22V for 12.5 seconds continuously.

Cause of Failure

Wiring harness or connector between Pressure Control Solenoid (PCS) and TCM
PCS
TCM

DTC P0962 - Pressure Control Solenoid (PCS) Electrical (Low)

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 Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0962 displayed?	-	Go to Step 3	Inspect the temporary connection failure of the connector and repair it if necessary. Refer to "Wiring Harness and Connector Inspection" in this section.
3	Turn the ignition OFF. Inspect the resistance between the vehicle harness and pressure control solenoid(PCS). Refer to "Unit Inspection" in this section. Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A4 and A2. Is the measurement within the specified value?	20°C (68°F) 5.0-5.6 Ω	Go to Step 4	Go to Step 5
4	Inspect the vehicle side wiring harness and connector. Inspect the continuity and short circuit for the corresponding wiring harness. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the corresponding connectors. Refer to "Wiring Harness and Connector Inspection" in this section. Is the inspection OK?	-	Go to Step 6	Replace the vehicle harness or adjustment between the connectors.
5	Inspect the resistance between T/M wire and PCS. Disconnect the connector (X-3) of T/M wire and inspect the resistance between PCS connector terminal 3 and 8. Is the measurement within the specified value?	20°C (68°F) 5.0-5.6 Ω	Go to Step 7	Go to Step 8
6	Clean the connector. Is the failure resolved?	-	System OK	Go to Step 11
7	Inspect the continuity and short circuit for the corresponding wiring harness. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the corresponding connectors. Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Clean the connectors.	Replace the vehicle harness or adjustment between the connectors.
8	Inspect the PCS. Refer to "Unit Inspection" in this section). Is the inspection OK?	-	Go to Step 9	Go to Step 10
9	Inspect the continuity and short circuit for the T/M wire. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the connectors(C-6). Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Clean the connectors.	Replace the T/M wire.
10	Replace the valve body assembly (No replacement PCS by itself). Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-
11	Replace the TCM. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-

Diagnostic Trouble Code (DTC) P0963

Pressure Control Solenoid (PCS) Electrical (High)

Conditions for Running the DTC

No emergency mode.
Input A/D value is 1000 (0.257V) or greater for 0.5 seconds continuously.

Conditions for Setting the DTC

Above detection continuously occurs 1 time.

Action Taken When the DTC Sets

TCM will request the illumination of MIL and store DTC when TCM detects a failure on the first ignition cycle.
No lockup control
No engine torque reduction control
No engagement pressure control
No 4th gear
No self-learning control
After failure decision : emergency mode

Conditions for Clearing the DTC

The TCM turns off the MIL when no further failures detected for three consecutive ignition cycles.
The scan tool can clear the DTC from the TCM history.
The TCM clears the DTC from the TCM history memory after forty consecutive warm up cycles without fault.
TCM detects the input A/D value is between 0.02V and 0.22V for 12.5 seconds continuously.

Cause of Failure

Wiring harness or connector between Pressure Control Solenoid (PCS) and TCM
PCS
TCM

DTC P0963 - Pressure Control Solenoid (PCS) Electrical (High)

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 Hold/Malfunction Indicator Lamp (MIL) ON?	-	Go to Step 2	Inspect the temporary connection failure of the connector and repair it if necessary. 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 P0963 displayed?	-	Go to Step 3	Inspect the temporary connection failure of the connector and repair it if necessary. Refer to "Wiring Harness and Connector Inspection" in this section.
3	Turn the ignition OFF. Inspect the resistance between the vehicle harness and pressure control solenoid(PCS). Refer to "Unit Inspection" in this section. Disconnect the TCM connector (X-1) and inspect the resistance between the terminal A4 and A2. Is the measurement within the specified value?	20°C (68°F) 5.0-5.6 Ω	Go to Step 4	Go to Step 5
4	Inspect the vehicle side wiring harness and connector. Inspect the continuity and short circuit for the corresponding wiring harness. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the corresponding connectors. Refer to "Wiring Harness and Connector Inspection" in this section. Is the inspection OK?	-	Go to Step 6	Replace the vehicle harness or adjustment between the connectors.
5	Inspect the resistance between T/M wire and PCS. Disconnect the connector (X-3) of T/M wire and inspect the resistance between PCS connector terminal 3 and 8. Is the measurement within the specified value?	20°C (68°F) 5.0-5.6 Ω	Go to Step 7	Go to Step 8
6	Clean the connector. Is the failure resolved?	-	System OK	Go to Step 11
7	Inspect the continuity and short circuit for the corresponding wiring harness. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the corresponding connectors. Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Clean the connectors.	Replace the vehicle harness or adjustment between the connectors.
8	Inspect the PCS. Refer to "Unit Inspection" in this section). Is the inspection OK?	-	Go to Step 9	Go to Step 10
9	Inspect the continuity and short circuit for the T/M wire. Refer to "Wiring Harness and Connector Inspection" in this section. Inspect the connection condition between the connectors(C-6). Refer to "Wiring Harness and Connector Inspection" in this section. Is the condition OK?	-	Clean the connectors.	Replace the T/M wire.
10	Replace the valve body assembly (No replacement PCS by itself). Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-
11	Replace the TCM. Is the replacement completed?	-	Perform the transmission adaptive learn procedure. Refer to "Transmission Adaptive Learn Procedure" in this section.	-