Mitsubishi Outlander GS45X. Manual - part 1690

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-65

STEP 5. Check the signals of input shaft speed sensor and 
output shaft speed sensor.
Check the signals of C-37 TCM connector terminal No. 37 and 
No. 38.
Refer to 

P.23C-158

.

Q: Is the check result normal?

YES : Go to Step 6.
NO :  Repair or replace the failure section.

STEP 6. Hydraulic pressure test
Refer to 

P.23C-26

.

Q: Is the check result normal?

YES : Go to Step 7.
NO :  Remove the A/T from the vehicle, then check and 

repair the inside.

STEP 7. Erase the DTC code, and drive the vehicle for a 
while.
Check that the normal code is displayed.
Q: Is the check result normal?

YES : The procedure is complete.
NO :  Return to START.

DTC P0736: Reverse Gear Incorrect Ratio

.

DESCRIPTIONS OF MONITOR METHODS

Check Conditions, Judgement Criteria

• During reverse driving, engine runup

*1

 is 

detected for 250 milliseconds or more.

*1

: The actual gear ratio deviates from the target gear 

ratio to the high engine (turbine) speed.

.

MONITOR EXECUTION

• Reverse gear driving

.

MONITOR EXECUTION CONDITIONS 
(OTHER MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored 

in memory for the item monitored below)

• P0846: Malfunction of the 2-6 brake pressure 

switch system

• P0876: Malfunction of the High clutch pressure 

switch system

• P0988: Malfunction of the Low-reverse brake 

pressure switch system

Sensor (The sensor below is determined to be 

normal)

• Not applicable

.

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-66

LOGIC FLOW CHARTS (Monitor Sequence)

.

DTC SET CONDITIONS

Check Conditions

• Shift stage: reverse gear.

Judgement Criteria

• Gear ratio: more than -3.457. (0.25 second)

.

OBD-II DRIVE CYCLE PATTERN

Reverse gear driving for 5 seconds or more

.

TROUBLESHOOTING HINTS (THE MOST 
LIKELY CAUSES FOR THIS CODE TO BE 
SET ARE:)

• Transaxle assembly powertrain parts failure

• Malfunction of the P0715: input shaft speed sen-

sor system

• Malfunction of the P0720: output shaft speed 

sensor system

• Malfunction of the P0748: line pressure linear 

solenoid valve system circuit

• Malfunction of the P0763: 3-5 reverse clutch lin-

ear solenoid valve system circuit

• Malfunction of the P0743: lock-up and 

low-reverse brake linear solenoid valve system 
circuit

• Malfunction of the P1758: low-reverse brake shift 

solenoid valve system circuit

• Malfunction of the 3-5 reverse clutch

• Malfunction of the low-reverse brake

• Malfunction of the valve body assembly

Good

END

No

No

No

 

 

 

 

START

Malfunction

Yes

Yes

Yes

AC802667

Actual gear ratio     -3.457

Gear position is reverse

Continuous failure
     for 250 msec

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-67

DIAGNOSIS

STEP 1. Check the DTC.
Check that P0715 (input shaft speed sensor) and P0720 (out-
put shaft speed sensor) are set.
Q: Is the DTC set?

YES : Check and repair the relevant DTC system.
NO :  Go to Step 2.

STEP 2. Check the DTC.
Check if the DTC other than P0736 (Reverse gear ratio) is set.
Q: Is the DTC set?

YES : Check and repair the relevant DTC system.
NO :  Go to Step 3.

STEP 3. Check the transmission fluid properties.
Check the status of the transmission fluid properties (smell, 
color, fouling).

• Black: A/T inside damage, seizure

• Milky: Water intrusion

Q: Is the check result normal?

YES : Go to Step 4.
NO :  Remove the A/T from the vehicle, then check and 

repair the inside.

STEP 4. Check the transmission fluid level.
Q: Is the check result normal?

YES : Adjust the transmission fluid level, and then go to 

Step 5.

NO :  Go to Step 5.

STEP 5. Check the signals of input shaft speed sensor and 
output shaft speed sensor.
Check the signals of C-37 TCM connector terminal No. 37 and 
No. 38.
Refer to 

P.23C-158

.

Q: Is the check result normal?

YES : Go to Step 6.
NO :  Repair or replace the failure section.

STEP 6. Hydraulic pressure test
Refer to 

P.23C-26

.

Q: Is the check result normal?

YES : Go to Step 7.
NO :  Remove the A/T from the vehicle, then check and 

repair the inside.

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-68

STEP 7. Erase the DTC code, and drive the vehicle for a 
while.
Check that the normal code is displayed.
Q: Is the check result normal?

YES : The procedure is complete.
NO :  Return to START.

DTC P0741: Torque Converter Clutch System (Stuck Off), P0742 Torque Converter Clutch System 
(Stuck ON) 

.

DESCRIPTIONS OF MONITOR METHODS 
<P0741>

• When the input shaft speed sensor is normal, the 

engine speed signal is normal, and within the 
lock-up operation range, the slip speed of the 
torque converter exceeds the specified value. 
(P0741)

.

MONITOR EXECUTION <P0741>

• Driving with the lock-up activated

.

MONITOR EXECUTION CONDITIONS 
(OTHER MONITOR AND SENSOR) 
<P0741>

Other Monitor (There is no temporary DTC stored 

in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be 

normal)

• Not applicable

.