Engine Speed Does Not Return to Idle
Engine Speed Does Not Return to IdleSYMPTOM: When a shift-down is performed, the engine speed does not smoothly return to the idling speed.
DIAGNOSTIC PROCEDURE
1.CHECK A/T FLUID LEVEL
Check A/T fluid level.
OK or NG
OK >> GO TO 2.
NG >> Refill [1][2]ATF.
2.CHECK SELF-DIAGNOSTIC RESULTS
With CONSULT-III
^ Select "SELF-DIAG RESULTS" mode for "TRANSMISSION" with CONSULT-III.
Without CONSULT-III
^ Perform the self-diagnosis. Refer to AT-92, "Diagnosis Procedure without CONSULT-III". Diagnosis Procedure Without Consult-III
Is any malfunction detected by self-diagnostic results?
YES >> Check malfunctioning system. Refer to AT-85, "CONSULT-III Function (TRANSMISSION)", AT-92, "Diagnosis Procedure without CONSULT-III".
Consult-III Function (Transmission)
Diagnosis Procedure Without Consult-III
NO >> GO TO 3.
3.CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition. Refer to AT-44, "How to Perform Trouble Diagnosis for Quick and Accurate Repair". How to Perform Trouble Diagnosis For Quick and Accurate Repair
OK or NG
OK >> GO TO 4.
NG >> GO TO 7.
4.DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-61, "Symptom Chart" (Symptom No.72). Symptom Table
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5.CHECK SYMPTOM
Check again. Refer to AT-54, "Road Test". Road Test
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6.CHECK TCM
1. Check TCM input/output signals. Refer to AT-84, "TCM Input/Output Signal Reference Value". Pinout Values and Diagnostic Parameters
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.
7.DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-61, "Symptom Chart" (Symptom No.72). Symptom Table
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.