Inspection
Procedure 11: Does not Shift Properly (All Points)
COMMENTS ON TROUBLE SYMPTOM
If all shift points are early or late while driving, the cause is probably a malfunction
of the output shaft speed sensor, throttle position sensor, or engine-A/T-ECU.PROBABLE CAUSES
- Malfunction of output shaft speed sensor
- Malfunction of throttle position sensor
- Malfunction of the engine-A/T-ECU
DIAGNOSIS PROCEDURE
STEP 1. MUT-II/III data list
) <Except
for Hong Kong spec.>.Item 02: Output shaft speed sensor (Refer to data list reference table
) <Vehicles
for Hong Kong spec.>.Q: Is the check result normal?
YES:
Go to Step 2
.NO: Refer to diagnosis code 23: Output shaft speed sensor system
<4G63, 4G64>, <4G69>.STEP 2. MUT-II/III data list
).Q: Is the check result normal?
YES:
Go to Step 3.NO: Check the throttle position sensor system (Refer to GROUP 13A, Troubleshooting
<4G63>,
GROUP 13B, Troubleshooting <4G64>, GROUP
13C, Troubleshooting , <4G69>).STEP 3. MUT-II/III actuator test
- Item 14: INVECS-II cancel command.
- Test drive the vehicle (Refer to Road Test, Inspection procedure 8 ).
- Check that the gear shifting corresponds to the standard shift line of the shift pattern diagram.
Q: Is the check result normal?
YES:
The inspection is complete.NO: Replace the engine-A/T-ECU.