A/T Does Not Shift 5TH Gear To 4TH Gear (Column Shift Models)

SYSTEM SYMPTOM


A/T Does Not Shift: 5th gear to 4th gear (Column Shift Models)

SYMPTOM:
When shifted from 5M to 4M position in manual mode, does not downshift from 5th to 4th gears.

DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Perform self-diagnosis. Refer to CONSULT-III Function (Transmission).
Do the self-diagnosis results indicate PNP switch?
YES - Check the malfunctioning system. Refer to P0705.
NO - GO TO 2.
2. CHECK A/T FLUID LEVEL





Check the A/T fluid level. Refer to Checking A/T Fluid.
OK or NG
OK - GO TO 3.
NG - Refill ATF.
3. CHECK CONTROL CABLE





Check the control cable.
- Refer to Procedures.
OK or NG
OK - GO TO 4.
NG - Adjust control cable. Refer to Adjustment Of A/T Position Procedures.
4. CHECK MANUAL MODE SWITCH





Check the manual mode switch. Refer to P1815.
OK or NG
OK - GO TO 5.
NG - Repair or replace damaged parts.
5. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to Service and Repair.





2. Check A/T fluid condition. Refer to Checking A/T Fluid.
OK or NG
OK - GO TO 6.
NG - GO TO 9.
6. DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to Symptom Table (Symptom No.14).
OK or NG
OK - GO TO 7.
NG - Repair or replace damaged parts.
7. CHECK SYMPTOM
Check again. Refer to Cruise Test - Part 3.
OK or NG
OK - INSPECTION END
NG - GO TO 8.
8. PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to Reference Value.
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness connector.
OK or NG
OK - INSPECTION END
NG - Repair or replace damaged parts.
9. DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to Symptom Table (Symptom No.14).
OK or NG
OK - GO TO 7.
NG - Repair or replace damaged parts.