Service Manual2007 Captiva DIAGNOSIS

Captiva

DIAGNOSIS

Electric Connector View

X-1 : TCM Vehicle Side Wiring Connector
Connector J1		Connector J2
1	Ground	5	Output Speed Sensor (-)
2	Line Pressure Control Solenoid (-)	6	Input Speed Sensor (-)
3	TCC Lock Up Pressure Control Solenoid (-)	7	"B" Signal (TR switch)
4	Line Pressure Control Solenoid (+)	8	"A" Signal (TR switch)
5	TCC Lock Up Pressure Control Solenoid (+)	14	Output Speed Sensor (+)
6	Battery	16	Input Speed Sensor (+)
7	High Speed CAN (-)	19	"PA" Signal (TR switch)
8	High Speed CAN (-)	20	"C" Signal (TR switch)
11	TFT Sensor (+)	21	Ignition
12	TFT Sensor (-)	22	Voltage
13	Shift Solenoid (SS) 4	-	-
14	Shift Solenoid (SS) 3	-	-
15	Shift Solenoid (SS) 2	-	-
16	Shift Solenoid (SS) 1	-	-
17	High Speed CAN (+)	-	-
18	High Speed CAN (+)	-	-
19	Shift Pressure Control Solenoid (-)	-	-
21	Shift Pressure Control Solenoid (+)	-	-
22	Shift Solenoid (SS) 5	-	-
23	Ground	-	-
24	Accessory Wake up Serial Data	-	-

Wiring Harness and Connector Inspection

Reproducing test

Perform symptom simulation test on the basis of user's condition. Refer to the below factors.

Occurring-road condition, speed, accelerate, reduce speed, straight, curve, air temperature, weather, etc.

Inspect the connection condition of between connectors.

Inspect the failure between connectors by visual check and contact pressure check.

Connector disconnected
Terminals rusted
Terminals deformation or loose fit

Inspect the Continuity of the wiring harness.

Disconnect both ends connector of wiring harness, measure resistance between one connector terminal and other.

Normal : 1Ω or less (No open circuit)
Abnormal : ∞ Ω (Open circuit)

Notice : Measure the resistance while slightly shaking wire harness vertically and horizontally.

It is rare case wiring harness is broken at the middle of it, and most cases occur at the connector.

Inspect the short circuit of the wiring harness.

Disconnect the connectors of the wiring harness at both ends, measure resistance between the applicable terminals of the connector and body earth.

Normal : 1M Ω or higher (No short circuit)
Abnormal : Low resistance (Short circuit)

Measure the resistance between one terminal an another terminal in the same connector.(Except between power supply or between earth).

Normal : 1M Ω or higher (No short circuit)
Abnormal : Low resistance (Short circuit)

Notice : Measure the wiring harness while slightly shaking vertically and horizontally.

It is usual case of the short circuit that wiring harness is crowded body and clamping failure.

Temporary connection failure of the connector.

It is thought that temporally the connection failure of the connector is cause when you can not decide cause of DTC detection.

Therefore make sure to inspect and clean the connector and delete the memorized DTC.

Road Test

Road test is to diagnosis failure symptom accurately and check the failure symptom after procedure.

Confirm whether below condition before road test. Oil temperature is hot condition (50°C (122°F) ~ 80°C (176°F)).

D range test

Check for up-shift, down-shift, kick-down and lock-up operation at the shift point.
Check for engine brake operation.
Check for Check abnormal shock, noise and harshness.

"P" range test

Park vehicle on a gradient (more than 5°), shift into the "P" range and release parking brake.

Then, check to see no moving vehicle by operation of parking lock pawl.

Function Check

Confirm whether below condition before function check.

Oil temperature is hot condition (50°C (122°F) ~ 80°C (176°F)).
Switch of A/C and light etc are off.

Stall Test

Stall test' purpose is to inspect overall performance of A/T and engine by measuring the stall speed in "D" and "R" range.

Chock 4 Wheels and apply parking brake fully, lock vehicle perfectly.
Fully pressed on foot brake pedal with left foot.
Shift into "D" and "R" range, fully press on accelerator pedal with right foot.

Quickly read stall speed at this time.

Standards	2.4L	2,640 rpm
Standards	3.2L/2.0S Diesel	2,489 rpm

Notice : Do not continuously run longer than 5 sec because of extreme increasing oil temperature.

Make sure to keep interval for more than 1 min between stall tests.

Result of Stall Test	Cause of Failure
Lower than standards both "D" and "R"	Less engine power Torque converter one way clutch failure
Higher than standards only "D"	Lower line pressure Forward clutch (C1) failure (Slipping) No.2 One-way clutch (F2) failure
Higher than standards only "R"	Lower line pressure Direct clutch (C2) failure (Slipping) 1st & reverse brake (B3) failure (Slipping)
Higher than standards both "D" and "R"	Lower line pressure B5 brake failure Oil strainer failure (clogging) Oil leak for each range circuit

Time Lag Test

Time lag is time till slightly shock can be felt when shift lever is shifted "N" → "D" and "N" → "R" while engine idling.

Time lag test can inspect hydraulic condition and clutch/brake condition.

Chock 4 Wheels and apply parking brake fully, lock vehicle perfectly.
Measure time lag by using stop watch from moment when shift lever is shifted in "N" → "D" and "N" → "R" until moment slightly shock can be felt.

"N" → "D"	less than 0.7 sec
"N" → "R"	less than 1.2 sec

Notice : Make sure to take 3 measurement and take the average value.

Make sure to keep interval for more than 1 min between time lag tests. (That purpose is to remove clutch/brake pressure was left unfinished.)

Result of Time Lag Test	Cause of Failure
Longer than standards "N" → "D"	Lower line pressure Forward Clutch (C1) failure (Slipping) One way clutch No.2 (F2) failure
Longer than standards "N" → "R"	Lower line pressure Direct clutch (C2) failure (slipping) 1st & reverse brake (B3) failure (slipping) B5 brake failure (slipping)

Hydraulic Test

Tools Required

J 21867-50 Transmission Line Pressure Adapter

J 21867 Pressure Gage

Hydraulic test can inspect working condition inside A/T by measuring line pressure in "D" / "R" range and "idle" / "stall" condition.

Chock 4 Wheels and apply parking brake fully, lock vehicle perfectly.

Install J 21867 and J 21867-50 to test hole for line pressure.
Fully pressed on foot brake pedal with left foot, shift into "D" and "R" range and measure line pressure "idle" / "stall" condition.

Line pressure Mpa (psi)	D	R
Engine idle	0.33-0.39 (47.86-56.56)	0.50-0.62 (72.52-89.92)
Engine stall	1.28-1.40 (185.65-203.05)	1.71-1.99 (248.01-288.63)

Notice : Do not continuously run longer than 5 sec because of extreme increasing oil temperature.

Make sure to keep interval for more than 1 min between stall tests.

Make sure to check no oil leak after installing oil pressure gage adapter.

Result of Hydraulic Test	Cause of Failure
Higher than standards both "D and "R"	Line pressure control solenoid failure Primary regulator valve failure
Lower than standards both "D and "R"	Line pressure control solenoid failure Primary regulator valve failure Oil pump failure B5 brake failure
Lower than standards only "D	Lower line pressure B5 brake failure (slipping) "D" hydraulic circuit failure Forward clutch (C1) failure
Lower than standards only "R"	"R" hydraulic circuit failure Direct clutch (C2) failure 1st and reverse brake (B3) failure B5 brake failure

Manual Shifting Test

Manual shifting test is to determine whether failure symptom is within electrical failure or mechanical failure.

Disconnect wire harness of shift solenoid, check the range and gear positions correspond with below table when driving by manual shifting.

Range	Gear
D	4th gear
R	Reverse

Notice : Make sure to disconnect only wire harness of shift solenoid.

Unit Inspection

Drive Plate Deflection

Inspect drive plate deflection if within standard value.

Standard Value

within 0.2mm (0.008 in)

Action :

Standard value is not within the specified value, replace drive plate.

When "abnormal wear" or "stick" on torque converter sleeve or oil pump is found, replace torque converter and A/T.

Notice :

When assembling torque converter and drive plate. Be sure to use correct bolt with correct length. The bolt pushes up torque converter front cover, and it damages lock-up clutch lining. As a result, it cause major failure "No move".
Do not tighten the bolts by using impact wrench.

Cooler Pipe Bending and Choke

Inspect it whether there is abnormal pipe bending in the cooler pipe, pipe deformation and small cross-section area of pipe line.

Action : Replace failure parts.

Apply compressed air of 2kg/cm² from cooler pipe inlet side, inspect whether there is not cooler pipe choke by confirming air flow smooth.

Action : Remove foreign particles and clean inside of pipe line.

Input Speed Sensor and Output Speed Sensor

Remove the connector of output or input speed sensor, connect 12V power supply and 100 ohm resistance and ammeter to the terminal. (Do not mistake polarity)
Inspect the current of high and low signal by shaking magnetic body from side to side at the speed sensor tip. (gap is within 5mm)

Notice : Make sure to shake the direction from bolt hole to sensor-self when shaking the magnetic body. If not, the current value can not change.

Signal	Current (mA)
High	12.0-16.0
Low	4.0-8.0

Action : If the result of inspection is bad, replace the input or output speed sensor.

Transmission Range (TR) Switch

Remove TR switch connector and inspect continuity each range according to the connection chart.

Action : If the result of inspection is bad, replace the TR switch.

Transmission Fluid Temperature Sensor

Inspect the resistance between the terminals of TFT sensor at 10°C (50°F) and 110°C (230°F).

Standard Value	10°C (50°F)	110°C (230°F)
Standard Value	5.80~7.09 kΩ	0.231~0.263 kΩ

Action : If the result of inspection is bad, replace the TFT sensor.

TFT sensor ground
TFT sensor signal

Shift Solenoid (NO.1, 2, 3, 4, 5)

Inspect the resistance of each shift solenoid between the terminal and the body earth.

Action : If the result of inspection is bad, replace each solenoid.

Notice :

Make sure to inspect resistance again at 20°C (68°F) when resistance differ from standards except 20°C (68°F).
It might become infinity ohm when inspecting resistance at higher temperature.

Inspect the operation of each shift solenoid.

Solenoid (No.1, 4) (Normal open type)

No battery connection	Leak air
Battery connection	No leak air

Solenoid (No. 2, 3, 5) (Normal close type)

No battery connection	No leak air
Battery connection	Leak air

Action : If the result of inspection is bad, replace the each solenoid.

Notice : Do not damage the solenoid filter.

Pressure Control Solenoid

Inspect the resistance of each pressure control solenoid between terminals.

Action : Replace the valve body assembly. (No replacement of solenoid by itself)

Notice :

Make sure to inspect resistance again at 20°C (68°F) when resistance differ from standards except 20°C (68°F).
It might become infinity ohm when inspecting resistance at higher temperature.

On-Vehicle Repair (Matrix Chart)