Mitsubishi Outlander GS45X. Manual - part 1628

DIAGNOSIS

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CVT

23A-69

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III data list

• Item 33: Line pressure SOL. output current

• Item 32: Line pressure SOL. monitor current

OK: Check if the output current and monitoring cur-
rent differ largely.

Q: Is the check result normal?

YES : Intermittent malfunction
NO :  Go to Step 2.

STEP 2. Check the following connector:

• C-38 TCM connector

• B-125 CVT assembly connector

Check the terminals for a contact status problem and internal 
short circuit.
Q: Is the check result normal?

YES : Go to Step 3.
NO :  Repair the defective connector.

STEP 3. Check for open circuit and short to ground in the 
wiring harness between the TCM connector and the CVT 
assembly connector.
Between C-38 TCM connector (terminal No.1) and B-125 CVT 
assembly connector (terminal No.1)
Q: Is the check result normal?

YES : Go to Step 4.
NO :  Repair the wiring harness.

STEP 4. Line pressure solenoid valve single unit check
Refer to 

P.23A-146

.

Q: Is the check result normal?

YES : Go to Step 5.
NO :  Replace the valve body assembly.

STEP 5. Symptom recheck after erasing diagnostic trouble 
code
Q: Is the check result normal?

YES : Intermittent malfunction
NO :  Replace TCM.

DIAGNOSIS

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CVT

23A-70

DTC P0746: Abnormality in Hydraulic Control System Function

.

DIAGNOSTIC FUNCTION

TCM determines that the malfunction is present 
when pulley ratio becomes higher (pulley ratio range: 
2.349 to 0.394).

.

DESCRIPTIONS OF MONITOR METHODS

• The status with the pulley ratio of 3.5 or more 

continues for 0.1 second or with the pulley ratio of 
2.7 or more continues for 0.2 second.

.

MONITOR EXECUTION

• Transmission range: D

• Throttle valve opening : 1/8 or more

• Engine speed : 450 r/min or more

• CVT fluid temperature : from 20 to 180°C 

(68~356

°F)

.

MONITOR EXECUTION CONDITIONS 
(OTHER MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored 

in memory for the item monitored below)

• P0741: Abnormality in lockup function

• P0841: Abnormality in line pressure sensor func-

tion

Sensor (The sensor below is determined to be 

normal)

• Not applicable

.

DIAGNOSIS

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CVT

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LOGIC FLOW CHARTS (Monitor Sequence)

.

DTC SET CONDITIONS

Check Conditions

• Transmission range switch position: D.

• Throttle position sensor voltage: 1.37 volts or 

more.

• Engine speed: 450 r/min or more.

• Transmission fluid temperature: 20°C (68°F) or 

more.

• Transmission fluid temperature: 180°C (356°F) or 

less.

• Voltage of battery: 9 volts or more.

• Voltage of battery: 16 volts or less.

JUDGMENT CRITERIA

• Pulley ratio (primary pulley ratio/secondary pulley 

ratio): more than 3.5. (0.1 second)

• Pulley ratio (primary pulley ratio/secondary pulley 

ratio): more than 2.7. (0.2 second)

.

OBD-II DRIVE CYCLE PATTERN

Transmission range: D (Drive the vehicle for 10 sec-
onds or more while the accelerator opening angle is 
20% or more)

.

No

AC609375

START

Yes

No

Pulley ratio > 3.5

No

Yes

Good

Malfunction

END

Yes

Yes

Yes

All secondary parameters
are in the enable condition.

No

No

Continuous failure for 0.1 sec

Pulley ratio > 2.7

Continuous failure for 0.2 sec

AB

DIAGNOSIS

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PROBABLE CAUSES

• Abnormal line pressure

• Malfunction of TCM

DIAGNOSTIC PROCEDURE

STEP 1. Check other diagnostic trouble codes.
Q: Are other diagnostic trouble codes set?

YES : Carry out the appropriate troubleshooting.
NO :  Go to Step 2.

STEP 2. M.U.T.-III data list
Item 33: Line pressure SOL. output current (Refer to Data List 
Reference Table 

P.23A-127

.)

Q: Is the check result normal?

YES : Intermittent malfunction
NO :  Go to Step 3.

STEP 3. Line Pressure Check
Carry out "hydraulic test"(Refer to 

P.23A-27

).

Q: Is the check result normal?

YES : Go to Step 4.
NO :  Repair according to the hydraulic pressure test 

diagnosis table.

STEP 4. Symptom recheck after erasing diagnostic trouble 
code
Q: Is the check result normal?

YES : Intermittent malfunction
NO :  Replace TCM.