Vehicle Does Not Creep Backward In R Position

Vehicle Does Not Creep Backward In "R" Position

SYMPTOM: The vehicle does not creep in the "R" position. Or an extreme lack of acceleration is observed.

DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS Perform self-diagnosis.

Do the self-diagnostic results indicate accelerator pedal position sensor, ATF pressure switch 6, high and low reverse clutch solenoid valve, CAN communication line, PNP switch?
YES >> Check the malfunctioning system. Refer to "DTC P1705 THROTTLE POSITION SENSOR" P1705, "DTC P1846 ATF PRESSURE SWITCH 6" P1846, "DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE" P1767, "DTC U1000 CAN COMMUNICATION LINE" Transmission Control Systems, "DTC P0705 PARK/NEUTRAL POSITION SWITCH" P0705.
NO >> GO TO 2.

2. CHECK CONTROL CABLE





Check the control cable.

OK or NG
OK >> GO TO 3.
NG >> Adjust control cable.

3. CHECK A/T FLUID LEVEL





Check A/T fluid level.

OK or NG
OK >> GO TO 4.
NG >> Refill ATF.

4. CHECK STALL TEST





Check stall revolution with selector lever in "1" and "R" positions. Refer to "STALL TEST".

OK or NG
OK >> GO TO 5.
OK in "1" position, NG in "R" position >> GO TO 5.
NG in both "1" and "R" positions >> GO TO 8.

5. DETECT MALFUNCTIONING ITEM
1. Disassemble A/T.
2. Check the following items:
- Reverse brake.

OK or NG
OK >> GO TO9.
NG >> Repair or replace damaged parts.

6. CHECK LINE PRESSURE





Check the line pressure with the engine idling.

OK or NG
OK >> GO TO9.
NG - 1 >> Line pressure high. GO TO 7.
NG - 2 >> Line pressure low. GO TO 8.

7. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM.
2. Disassemble A/T.
3. Check the following items:
- Oil pump assembly.

OK or NG
OK >> GO TO9.
NG >> Repair or replace damaged parts.

8. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM.
2. Disassemble A/T.
3. Check the following items:
- Oil pump assembly.
- Power train system.
- Transmission case.

OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.





9. CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.

OK or NG
OK >> GO TO 10.
NG >> GO TO 13.

10. DETECT MALFUNCTIONING ITEM
^ Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to "Symptom Chart" (Symptom No.43) Symptom Chart.

OK or NG
OK >> GO TO 11.
NG >> Repair or replace damaged parts.

11. CHECK SYMPTOM
Check again.

OK or NG
OK >> INSPECTION END
NG >> GO TO 12.

12. PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection.
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.

13. DETECT MALFUNCTIONING ITEM
^ Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to "Symptom Chart" (Symptom No.43) Symptom Chart.

OK or NG
OK >> GO TO 11.
NG >> Repair or replace damaged parts.