Before Pinpoint Tests

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

If DTCs appear, while performing the on-board diagnostics, refer to the On-Board Diagnostic Trouble Code Description Chart for the appropriate service procedure.

Diagnostic Trouble Code Tests and Associated Procedures

Prior to entering the pinpoint tests, refer to any TSBs for 4R70W transmission concerns.