Vehicle Does Not Creep Backward In R Position

6. Vehicle Does Not Creep Backward In R Position

SYMPTOM: Vehicle does not creep backward when selecting R position.

1. CHECK A/T FLUID LEVEL





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

2. CHECK LINE PRESSURE





Check line pressure at idle with selector lever in R position. Refer to Line Pressure Test.
OK or NG
OK >> GO TO 3.
NG >>
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

3. CHECK STALL TEST





Check stall revolution with selector lever in 1 and R positions.
OK or NG
OK >> GO TO 4.
OK in 1 position, NG in R position >>
1. Disassemble A/T.
2. Check the following items:
^ Reverse clutch assembly
NG in both 1 and R positions >> GO TO 6.

4. CHECK A/T FLUID CONDITION





1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 5.
NG >> GO TO 6.

5. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >>
1. Perform TCM input/output signal inspection. Pinout Values and Diagnostic Parameters
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

6. DETECT MALFUNCTIONING ITEM
1. Disassemble A/T.
2. Check the following items:
^ Reverse clutch assembly
^ High clutch assembly
^ Low & reverse brake assembly
^ Forward clutch assembly
^ Overrun clutch assembly
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.