Vehicle Does Not Creep Forward In D, 3, 2 or 1 Position

7. Vehicle Does Not Creep Forward in D, 3, 2 or 1 Position

SYMPTOM: Vehicle does not creep forward when selecting D, 3, 2 or 1 position.
Basic Inspection

1. CHECK A/T FLUID LEVEL





Check A/T fluid level again.
OK or NG
OK >>GO TO 2.
NG >>Refill AT F.

2. CHECK STALL REVOLUTION





Check stall revolution with selector lever in D position.
OK or NG
OK >>GO TO 4.
NG >>GO TO 3.

3. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly.
2. Check the following items:
- Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter)
- Line pressure solenoid valve
3. Disassemble A/T.
4. Check the following items:
- Oil pump assembly
- Forward clutch assembly
- Forward one-way clutch
- Low one-way clutch
- Low & reverse brake assembly
- Torque converter
OK or NG
OK >>GO TO 4.
NG >>Repair or replace damaged parts.

4. CHECK LINE PRESSURE





Check line pressure at idle with selector lever in D position.
OK or NG
OK >>GO TO 6.
NG >>GO TO 5.

5. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly.
2. Check the following items:
- Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter)
- Line pressure solenoid valve
3. Disassemble A/T.
4. Check the following item:
- Oil pump assembly
OK or NG
OK >>GO TO 6.
NG >>Repair or replace damaged parts.

6. CHECK A/T FLUID CONDITION





1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >>GO TO 8.
NG >>GO TO 7.

7. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly.
2. Check the following items:
- Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter)
- Line pressure solenoid valve
3. Disassemble A/T.
4. Check the following items:
- Oil pump assembly
- Forward clutch assembly
- Forward one-way clutch
- Low one-way clutch
- Low & reverse brake assembly
- Torque converter
OK or NG
OK >>GO TO 8.
NG >>Repair or replace damaged parts.

8. CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >>GO TO 9.

9. 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 >>Repair or replace damaged parts.