A/T Does Not Hold Lock-Up Condition

A/T Does Not Hold Lock-up Condition

SYMPTOM:
The lock-up condition cannot be maintained for more than 30 seconds.

DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-94, "SELF-DIAGNOSTIC RESULT MODE", With Manufacturer's Scan Tool AT-104, "Diagnostic Procedure Without CONSULT-II". Without Scan Tool

Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to "SELF-DIAGNOSTIC RESULT MODE", "Judgement Self-diagnosis Code".
NO >> GO TO 2.

2. CHECK A/T FLUID LEVEL





Check A/T fluid level. Refer to "Checking A/T Fluid".

OK or NG
OK >> GO TO 3.
NG >> Refill ATF.

3. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to "Control Valve with TCM and A/T Fluid Temperature Sensor 2".





2. Check A/T fluid condition. Refer to "Fluid Condition Check".

OK or NG
OK >> GO TO 4.
NG >> GO TO 7.

4. DETECT MALFUNCTIONING ITEM
^ Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to "Symptom Chart" (Symptom No.25).

OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK SYMPTOM
Check again. Refer to "Cruise Test - Part 1".

OK or NG
OK >> INSPECTION END
NG >> GO TO 6.

6. CHECK TCM
1. Check TCM input/output signals. Refer to "TCM Input/Output Signal Reference Values".
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 the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to "Symptom Chart" (Symptom No. 25).

OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.