Mitsubishi Outlander XL. Manual - part 484

Judgement Criteria

｠

Gear ratio: more than 0.984. (0.25 second)

OBD-II DRIVE CYCLE PATTERN <DTC P0735>
Start the engine, and drive at more than 50 km/h (31
mph) for 10 seconds, with 5th gear fixed (5th gear in
sport mode).

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 sensor
system

｠

Malfunction  of  the  P0720:  output  shaft  speed
sensor system

｠

Malfunction  of  the  P0748:  line  pressure  linear
solenoid valve system circuit

｠

Malfunction of the P0753: low clutch linear solenoid
valve system circuit

｠

Malfunction of the P0758: 2-6 brake linear solenoid
valve system circuit

｠

Malfunction of the P0763: 3-5 reverse clutch linear
solenoid valve system circuit

｠

Malfunction  of  the  P0768:  high  clutch  linear
solenoid valve system circuit

｠

Malfunction of the P1753: low clutch shift solenoid
valve system circuit

｠

Malfunction of the low clutch, 2-6 brake, 3-5 reverse
clutch, high clutch

｠

Malfunction of the valve body assembly

 

DIAGNOSIS

STEP 1. Check the DTC.
Check that P0715 (input shaft speed sensor) and P0720 (output
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 that the DTC other than P0729, P0732, P0733, P0734,
P0735 (6th, 2nd, 3rd, 4th, 5th 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.

AUTOMATIC TRANSAXLE MECHANICAL

23A-51

AUTOMATIC TRANSAXLE DIAGNOSIS

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.23A-145.

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.23A-145.

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 P0731: 1st Gear Incorrect Ratio

M12301000401USA0000010000

DESCRIPTIONS OF MONITOR METHODS

｠

After  1st  gear  is  achieved  for  2  seconds,  the
abnormal  gear  ratio*1is  detected  for  2  seconds
continuously, or the engine runup*2is detected for
250 milliseconds.

*1: The actual gear ratio deviates from the target gear
ratio to the low engine (turbine) speed.
*2: The actual gear ratio deviates from the target gear
ratio to the high engine (turbine) speed.

MONITOR EXECUTION

｠

Continuous

MONITOR EXECUTION CONDITIONS (OTHER
MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored in
memory for the item monitored below)

｠

DTC

 P0705:

 Transmission

 range

 switch

malfunction

｠

DTC P0715: Input shaft speed sensor malfunction

｠

DTC P0720: Output shaft speed sensor malfunction

｠

DTC P0743: Lock-up and low-reverse brake linear
solenoid malfunction

｠

DTC P0753: Low clutch linear solenoid malfunction

｠

DTC P0758: 2-6 brake linear solenoid malfunction

｠

DTC  P0763:  3-5  reverse  clutch  linear  solenoid
malfunction

｠

DTC P0768: High clutch linear solenoid malfunction

｠

DTC P1753: Low clutch shift solenoid malfunction

｠

DTC  P1758:  Low-reverse  brake  shift  solenoid
malfunction

Sensor (The sensor below is determined to be
normal)

｠

Input shaft speed sensor

｠

Output shaft speed sensor

｠

Transmission range switch

｠

Lock-up and low-reverse brake linear solenoid

｠

Low clutch linear solenoid

｠

2-6 brake linear solenoid

｠

3-5 reverse clutch linear solenoid

｠

High clutch linear solenoid

｠

Low clutch shift solenoid

｠

Low-reverse brake shift solenoid

｠

Engine revolution signal

｠

CAN communication

23A-52

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS

LOGIC FLOW CHARTS (Monitor Sequence)

Good

START

END

    Shift changing is finished

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

No

Actual gear ratio 

＞＞

expected gear ratio

Malfunction

Yes

Actual gear ratio =
2nd to 4th gear ratio

Yes

Continuous failure  
      for 2 secs.

ZC604069

    Related devices
are correctly working

1

Timer start

      Shift stage
commanded by A/T

No

 : Engine revolution signal
   Input shaft speed sensor
   Output shaft speed sensor
   CAN communication
   Transmission range switch
   Low clutch linear solenoid
   2-6 brake linear solenoid 
   3-5 reverse clutch linear solenoid
   High clutch linear solenoid
   Low clutch shift solenoid
   Low-reverse brake shift solenoid
   Lock-up & low-reverse brake linear solenoid

1

   

Continuous failure  
      for 250 msecs.

Malfunction

Yes

0000

AUTOMATIC TRANSAXLE MECHANICAL

23A-53

AUTOMATIC TRANSAXLE DIAGNOSIS

DTC SET CONDITIONS

Check Conditions

｠

Shift stage: 1st gear.

｠

Time  after  shift  changing  finish:  more  than  2
seconds.

Judgement Criteria

｠

Gear ratio: more than 4.978. (0.25 second)

｠

Gear ratio: more than 2.114 and less than 2.584. (2
seconds)

｠

Gear ratio: more than 1.392 and less than 1.701. (2
seconds)

｠

Gear ratio: more than 1.021 and less than 1.247. (2
seconds)

OBD-II DRIVE CYCLE PATTERN
Start the engine, and drive at more than 20 km/h (12
mph) for 10 seconds, with 1st gear fixed (1st gear in
sport mode).

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 sensor
system

｠

Malfunction  of  the  P0720:  output  shaft  speed
sensor system

｠

Malfunction  of  the  P0748:  line  pressure  linear
solenoid valve system circuit

｠

Malfunction of the P0753: low clutch linear solenoid
valve system circuit

｠

Malfunction  of  the  P1758:  low-reverse  brake  shift
solenoid valve system circuit

｠

Malfunction of the low clutch

｠

Malfunction of the low one-way clutch

｠

Malfunction of the valve body assembly

 

DIAGNOSIS

STEP 1. Check the DTC.
Check that P0715 (input shaft speed sensor) and P0720 (output
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 P0731 (1st 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:

 Go to Step 5.

NO:

 Adjust the transmission fluid level, and then go to

Step 5.

23A-54

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS