Large Shock "N" To "R" Position

TROUBLE DIAGNOSIS FOR SYMPTOMS


Large Shock "N" to "R" Position


SYMPTOM:
There is a large shock when changing from "N" to "R" position.

DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to CONSULT-III Function (A/T) or Diagnosis Procedure Without CONSULT-III .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to CONSULT-III Function (A/T) or Diagnosis Procedure Without CONSULT-III .
NO >> GO TO 2.
2.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in "D" position. Refer to Inspections Before Trouble Diagnosis .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to Service and Repair .
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
- Oil pump assembly. Refer to Oil Pump .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK SYMPTOM
Check again. Refer to Check At Idle .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
5.CHECK TCM
1. Check TCM input/output signals. Refer to Pinout Values and Diagnostic Parameters .
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.