Before Pinpoint Tests

Note: Prior to entering pinpoint tests, check the powertrain control module (PCM) wiring harness for proper connections, bent or broken pins, corrosion, loose wires, proper routing, proper seals and their condition. Check the PCM, sensors and actuators for damage.

Note: If a concern still ex1sts after electrical diagnosis has been carried out, refer to Diagnosis by Symptom. 5R55E

If DTCs appear while carrying out the on-board diagnostics, refer to the Diagnostic Trouble Code Chart for the appropriate repair procedure. Prior to entering pinpoint tests, refer to any TSBs for transmission concerns.