A/T Basic Check

A/T Basic Check

This check is important for troubleshooting when TCM has detected no DTC and no abnormality has been noted in visual inspection. Follow the flow carefully.


1. Was "A/T System Check" preformed?
YES
Go to Step 2.
NO
Go to A/T System Check A/T System Check.
2. Road test
Perform road test. Road Test
Is it OK?
YES
Go to Step 3.
NO
Repair or replace defective part.
3. Manual road test
Perform manual road test. Manual Road Test
Is it OK?
YES
Go to Step 4.
NO
Repair or replace defective part.
4. Engine brake test
Perform engine brake test. Engine Brake Test
Is it OK?
YES
Go to Step 5.
NO
Repair or replace defective part.
5. Stall test
Perform stall test. Stall Test
Is it OK?
YES
Go to Step 6.
NO
Repair or replace defective part.
6. Time lag test
Perform time lag test. Time Lag Test
Is it OK?
YES
Go to Step 7.
NO
Repair or replace defective part.
7. Line pressure test
Perform line pressure test. Component Tests and General Diagnostics
Is it OK?
YES
Go to Step 8.
NO
Repair or replace defective part.
8. Proceed to "Trouble Diagnosis 1" in A/T Symptom Diagnosis A/T Symptom Diagnosis.
Is trouble identified?
YES
Repair or replace faulty parts.
NO
Go to Step 9.
9. Proceed to "Trouble Diagnosis 2" in A/T Symptom Diagnosis A/T Symptom Diagnosis.
Is trouble identified?
YES
Repair or replace faulty parts.
NO
Proceed to "Trouble Diagnosis 3" in A/T Symptom Diagnosis A/T Symptom Diagnosis.