Vehicle Does Not Decelerate By Engine Brake

TROUBLE DIAGNOSIS FOR SYMPTOMS


Vehicle Does Not Decelerate by Engine Brake


SYMPTOM:
Engine brake does not operate when releasing the accelerator pedal while the cruise test.

DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. CVT Trouble Diagnosis.
Is any malfunction detected by self-diagnosis?
YES - Check the malfunctioning system. CVT Trouble Diagnosis.
NO - GO TO 2.
2.CHECK CVT POSITION
Check CVT position. Testing and Inspection.
OK or NG
OK - GO TO 3.
NG - Adjust CVT position. Shift Control System.
3.CHECK CVT FLUID LEVEL
Check CVT fluid level. Procedures.
OK or NG
OK - GO TO 4.
NG - Refill CVT fluid.
4.CHECK LINE PRESSURE
Check line pressure at idle. CVT Trouble Diagnosis.
OK or NG
OK - GO TO 5.
NG - Check the malfunctioning item. CVT Trouble Diagnosis.
5.CHECK SYMPTOM
Check again. CVT Trouble Diagnosis.
OK or NG
OK - INSPECTION END
NG - GO TO 6.
6.CHECK TCM
1. Check TCM input/output signals. CVT Trouble Diagnosis.
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK - Replace the transaxle assembly. Removal and Installation(MR20DE), Removal and Installation (QR25DE).
NG - Repair or replace damaged parts.