Procedure 12

12. A/T DOES NOT SHIFT: D4 -> D4

SYMPTOM
- The vehicle does not shift up from the D4 to D5 gear at the specified speed.
- The vehicle does not shift up from the D4 to D5 gear unless A/T is warmed up.

DIAGNOSTIC PROCEDURE
1. CHECK CONFIRM THE PROBLEM
Vehicle does not creep forward In "D" position" and vehicle cannot be started from D1.
OK or NG
OK >>GO TO 2.
NG >> Refer to "Vehicle Does Not creep Forward In "D" Position", "Vehicle Cannot Be Started From D1".
2. CHECK SELF-DIAGNOSIS RESULTS
With CONSULT-II
After executing a traveling test, confirm that the self-diagnosis results indicate the following defective items:
- PNP switch
- A/T fluid temperature sensor
- Vehicle speed sensor A/T (revolution sensor)
- Vehicle speed sensor MTR
No Tools
Execute the self-diagnosis and confirm that a malfunction is indicated in the results.
Yes or No
Yes >> Check the defective system(s). Refer to "DTC P0705 PARK/NEUTRAL POSITION SWITCH", "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)", "DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT", "DTC P1721 VEHICLE SPEED SENSOR MTR".
No >> GO TO 3.
3. CHECK ACCELERATOR PEDAL POSITION SENSOR
Check the accelerator pedal position sensor.
- Refer to "DTC P0121 ACCELERATOR PEDAL POSITION (APP) SENSOR".
OK or NG
OK >>GO TO 4.
NG >> Repair or replace the accelerator pedal position sensor.
4. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
5. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG?
OK >> INSPECTION END
NG >>
1. Repair or replace damaged parts.
2. Replace the transmission assembly.