Diagnostic System Check

This test determines if the Transmission itself or its inputs or outputs connections or sensors are failing.

1. Connect the TECH 1. Refer to TECH 1 OBD II Connection.
Tech 1 Connection
2. Turn on the Ignition but not the Engine.
3. Push "F2" on TECH 1 to see the Diagnostic Trouble Code (DTC).
4. If you have a DTC, write down all the code numbers and check the appropriate Trouble Code Chart.
5. If you do not have a DTC:
a. Do the "CHECK TRANS" Check.
"Check Trans" Check




b. If it is flashing and the flash is 0.2 seconds "ON" and 0.2 seconds "OFF", this means that you should have a DTC stored. Recheck (refer to Diagnostic Check) and if you find the same problem, replace Powertrain Control Module (PCM).