Mitsubishi Outlander (2013+). Manual — part 363

TROUBLESHOOTING

CVT

23A-22

STEP 3. Check for open circuit and short to earth
in PRMS line between the primary pulley speed
sensor connector and the CVT-ECU connector

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Repair the connector(s) or wiring harness.

STEP 4. Check for open circuit in the power
supply line between the CVT control relay and
the primary pulley speed sensor connector

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Repair the connector(s) or wiring harness.

STEP 5. Primary pulley speed sensor check
Visually check the tip of the sensor for foreign materi-
als or damage.

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Repair.

STEP 6. Diagnosis code recheck after replacing
the primary pulley speed sensor

Q: Is the check result normal?

YES :

The inspection is complete.

NO :

Replace CVT-ECU.

Code No. P071B Malfunction of Ds position switch <Vehicles without paddle shift>

DIAGNOSTIC FUNCTION

The CVT-ECU detects that the Ds position switch is
stuck to ON.

JUDGMENT CRITERIA

The Ds position switch remains ON for five seconds
when the inhibitor switch is at "P", "R", or "N".

PROBABLE CAUSES

• Malfunction of Ds position switch

• Damaged wiring harness and connectors

• Malfunction of CVT-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III data list
Item 51: Ds position switch

OK: Turns ON when the selector lever is at
"Ds" or "L".

Q: Is the check result normal?

YES :

Intermittent malfunction

NO :

Go to Step 2

STEP 2. Ds position switch single unit check
Refer to

P.23A-58

.

Q: Is the check result normal?

YES :

Go to Step 3

NO :

Replace the selector lever assembly.

STEP 3. Check for short to earth in INHS line
between the CVT-ECU connector and the Ds
position switch connector

Q: Is the check result normal?

YES :

Go to Step 4

NO :

Repair the connector(s) or wiring harness.

STEP 4. Check for open circuit in earth line
between the Ds position switch connector and
body erth.

Q: Is the check result normal?

YES :

Go to Step 5

NO :

Repair the connector(s) or wiring harness.

STEP 5. Symptom recheck after erasing
diagnosis code

Q: Is the check result normal?

YES :

Intermittent malfunction

NO :

Replace CVT-ECU.

Code No. P0720: Malfunction of Secondary Pulley Speed Sensor

DIAGNOSTIC FUNCTION

CVT-ECU determines that the malfunction is present
when the secondary pulley speed sensor value

changes abruptly or when there is a discrepancy
between this sensor and other sensors in sensor
reading.

TROUBLESHOOTING

CVT

23A-23

JUDGEMENT CRITERIA

• The status with the primary pulley speed of 1,000

r/min or more and with the secondary pulley
speed of 150 r/min or less continues for 5 sec-
onds.

• 0.1 seconds after the vehicle speed computed by

CVT has dropped abruptly from 20 km/h or more
to 5 km/h or less

• When the secondary pulley speed sensor is

found abnormal by comparing the engine speed,
primary pulley speed, and vehicle speed

PROBABLE CAUSES

• Malfunction of secondary pulley speed sensor

• Damaged wiring harness and connectors

• Malfunction of CVT-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III data list
Item 02: Secondary speed sensor signal (Refer to
Service Data Table

P.23A-40

.)

Q: Is the check result normal?

YES :

Intermittent malfunction

NO :

Go to Step 2.

STEP 2. Check for open circuit in SGND line
between the secondary pulley speed sensor
connector and the CVT-ECU connector.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Repair the connector(s) or wiring harness.

STEP 3. Check for open circuit and short to earth
in SECS line between the secondary pulley
speed sensor connector and the CVT-ECU
connector

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Repair the connector(s) or wiring harness.

STEP 4. Check for open circuit in power supply
line between the CVT control relay and the
secondary pulley speed sensor connector

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Repair the connector(s) or wiring harness.

STEP 5. Secondary pulley speed sensor check
Visually check the tip of the sensor for foreign materi-
als or damage.

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Repair.

STEP 6. Diagnosis code recheck after replacing
the secondary pulley speed sensor

Q: Is the check result normal?

YES :

The inspection is complete.

NO :

Replace CVT-ECU.

Code No. P0725: Malfunction of Engine Speed

DIAGNOSTIC FUNCTION

CVT-ECU detects malfunction of engine speed
received from the engine-ECU by comparing the pri-
mary pulley speed with the secondary pulley speed.

JUDGMENT CRITERIA

• Locked up with the primary pulley speed of 1,000

r/min or more and with the engine speed of 450
r/min or less

• CVT-ECU detects the malfunction in the engine

speed by comparing it with the primary pulley
speed.

• CAN communication error occurs between

engine-ECU and CVT-ECU.

PROBABLE CAUSES

• Malfunction of the CAN bus

• Malfunction of the engine system

• Malfunction of CVT-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to perform the CAN bus diagnosis.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Go to "CAN Troubleshooting."

STEP 2. M.U.T.-III diagnosis code
Check if the engine-related diagnosis code is set.

Q: Is the check result normal?

TROUBLESHOOTING

CVT

23A-24

YES :

Go to Step 3.

NO :

Go to "Engine Troubleshooting."

STEP 3. Symptom recheck after erasing
diagnosis code

Q: Is the check result normal?

YES :

Intermittent malfunction

NO :

Replace CVT-ECU.

Code No. P0740: Malfunction of Lockup Solenoid Valve

DIAGNOSTIC FUNCTION

CVT-ECU determines malfunction by detecting the
abnormality in the lockup solenoid valve.

JUDGEMENT CRITERIA

Specified amount of current is not flown to the lockup
solenoid valve because of the open or short circuit.

PROBABLE CAUSES

• Malfunction of valve body assembly (Faulty

lockup solenoid valve)

• Damaged wiring harness and connectors

• Malfunction of CVT-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III data list

• Item 31: Lockup solenoid output current

• Item 30: Lockup solenoid monitoring current

OK: Check if the output current and monitor-
ing current differ largely.

Q: Is the check result normal?

YES :

Intermittent malfunction

NO :

Go to Step 2.

STEP 2. Check for open circuit and short to earth
in LULS line between the CVT-ECU connector
and the CVT assembly connector

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Repair the connector(s) or wiring harness.

STEP 3. Lockup solenoid valve single unit check
Refer to

P.23A-52

.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Replace the valve body assembly.

STEP 4. Symptom recheck after erasing
diagnosis code

Q: Is the check result normal?

YES :

Intermittent malfunction

NO :

Replace CVT-ECU.

Code No. P0741: Abnormality in Lock-up Function

DIAGNOSTIC FUNCTION

Abnormality is detected by the CVT-ECU when the
torque converter slip speed is high during lockup
control.

JUDGMENT CRITERIA

The status with the high torque converter slip speed
continues for 30 seconds during lockup control (Pri-
mary pulley speed and engine speed are normal,
and lockup differential pressure is 0.2 MPa or more).

PROBABLE CAUSES

• Abnormal line pressure

• Malfunction of CVT-ECU

DIAGNOSTIC PROCEDURE

STEP 1. Check other diagnosis codes.

Q: Are other diagnosis codes set?

YES :

Carry out the appropriate troubleshooting.

NO :

Go to Step 2.

STEP 2. M.U.T.-III data list

• Item 07: Primary speed

• Item 09: Engine speed

OK: No considerable difference is observed
between the primary pulley speed and the
engine speed.

Q: Is the check result normal?

TROUBLESHOOTING

CVT

23A-25

YES :

Intermittent malfunction

NO :

Go to Step 3.

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

P.23A-54

).

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Repair according to the hydraulic pressure
diagnosis table.

STEP 4. Symptom recheck after erasing
diagnosis code

Q: Is the check result normal?

YES :

Intermittent malfunction

NO :

Replace CVT-ECU.

Code No. P0745: Malfunction of Line Pressure Solenoid Valve

DIAGNOSTIC FUNCTION

CVT-ECU determines malfunction by detecting the
abnormality in the line pressure solenoid valve.

JUDGEMENT CRITERIA

Specified amount of current is not flown to the line
pressure solenoid valve because of the open or short
circuit.

PROBABLE CAUSES

• Malfunction of valve body assembly (Faulty line

pressure solenoid valve)

• Damaged wiring harness and connectors

• Malfunction of CVT-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III data list

• Item 33: Line pressure solenoid output current

• Item 32: Line pressure solenoid monitoring cur-

rent

OK: Check if the output current and monitor-
ing current differ largely.

Q: Is the check result normal?

YES :

Intermittent malfunction

NO :

Go to Step 2.

STEP 2. Check for open circuit and short to earth
in PLLS line between the CVT-ECU connector
and the CVT assembly connector.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Repair the wiring harness.

STEP 3. Line pressure solenoid valve single unit
check
Refer to

P.23A-52

.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Replace the valve body assembly.

STEP 4. Symptom recheck after erasing
diagnosis code

Q: Is the check result normal?

YES :

Intermittent malfunction

NO :

Replace CVT-ECU.

Code No. P0746: Abnormality in Hydraulic Control System Function

DIAGNOSTIC FUNCTION

CVT-ECU determines that the malfunction is present
when gear ratio becomes higher (gear ratio range:
2.349 to 0.394).

JUDGMENT CRITERIA

The status with the gear ratio of 3.5 or more contin-
ues for 0.1 seconds or with the gear ratio of 2.7 or
more continues for 0.2 seconds.

PROBABLE CAUSES

• Abnormal line pressure

• Malfunction of CVT-ECU

DIAGNOSTIC PROCEDURE

STEP 1. Check other diagnosis codes.

Q: Are other diagnosis codes set?

YES :

Carry out the appropriate troubleshooting.

NO :

Go to Step 2.