Before Pinpoint Tests

NOTE:
- Prior to entering Pinpoint Tests, refer to TSBs and OASIS messages for 4R44E concerns.
- Prior to entering Pinpoint Tests, the vehicle harness must be checked for continuity and shorts, and the powertrain control module (PCM) must be checked for any concerns.
- If any non-transmission service codes appear, service those codes first. They could affect the electrical operation of the transmission. Record and erase codes from continuous memory after repairs have been performed. After servicing any fault codes in the Quick Test, the Quick Test should be repeated.
- Check the EEC-V system wiring harness for proper connection, bent or broken pins, corrosion, loose wires, proper routing, proper seals and their condition. Check the powertrain control module (PCM), sensors, and actuators for physical damage.

If codes appear while performing the Self Test, refer to the On-Board Diagnostic Trouble Code Description Chart for the appropriate service procedure.