Diagnosis When DTC Is Not Set

1. If you have already checked the Diagnostic Trouble Codes (DTCs) and the Scan Tool TECH 1 does not provide any DTCs, and you have reproduced the problem and no DTC is stored: This means that you have to check the problem comparing the way it should work to the way it works now that the problem exists.
2. To find the problem, perform the following tests:
- A/T Oil Temp Indicator Test.
A/T Oil Temp Indicator Test
- Transmission Operating Mode Test.
Transmission Operating Mode Test