Mitsubishi Outlander (2003+). Manual - part 203
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-107
INSPECTION PROCEDURE 7: Shift shock when shifting from N to D and long delay
COMMENTS ON TROUBLE SYMPTOM
If abnormal shock or delay of two seconds or more
occurs when the selector lever is shifted from N to D
range while the engine is idling, the cause is
probably abnormal underdrive clutch pressure or a
malfunction of the underdrive clutch, valve body or
throttle position sensor.
Possible causes
•
Malfunction of underdrive solenoid valve
•
Malfunction of input shaft speed sensor
•
Abnormal underdrive clutch pressure
•
Malfunction of throttle position sensor
•
Malfunction of the underdrive clutch
•
Malfunction of valve body
•
Malfunction of the engine-A/T-ECU
DIAGNOSIS
STEP 1. MUT-II/III actuator test
Item 02: Underdrive solenoid valve
OK: Operating sound can be heard.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Replace the underdrive solenoid valve.
STEP 2. MUT-II/III data list
Item 01: Input shaft speed sensor (Refer to data list
reference table
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Refer to diagnosis code 22: Input shaft
speed sensor system
STEP 3. MUT-II/III data list
Item 32: Underdrive solenoid valve duty ratio.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Replace the engine-A/T-ECU.
STEP 4. Check when shift shock occurs.
Q: Does the shift shock occur when the vehicle starts
moving?
YES :
Go to Step 6.
NO :
Go to Step 5.
STEP 5. Hydraulic pressure test
Measure the hydraulic pressure for underdrive clutch
when the selector lever is shifted from N to D range
(Refer to
OK: Refer to
.
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Go to Step 8.
STEP 6. Check when shift shock occurs.
Q: Does the shift shock always occur?
YES :
Go to Step 8.
NO :
Go to Step 7.
STEP 7. MUT-II/III data list
Item 11: Throttle position sensor (Refer to data list
reference table
).
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Check the throttle position sensor system
(Refer to GROUP 13B, Troubleshooting
STEP 8. Valve body disassembly clean and
assembly
(1) Check the bolts for looseness and the O-ring,
solenoid valve and valve body for damage.
Replace the valve body assembly if the damages
are thought to be irreparable.
(2) Test drive the vehicle.
(3) Verify that the condition described by the
customer exists.
Q: Does a malfunction take place again?
YES :
Go to Step 9.
NO :
The inspection is complete.
STEP 9. Underdrive clutch check
Check the facing for seizure and the piston seal ring
for damage and interference with the retainer.
Q: Is the check result normal?
YES :
The inspection is complete.
NO :
Repair or replace the underdrive clutch.