Operation CHARM: Car repair manuals for everyone.

Drive Cycle Test Notes

- After performing the EEC-IV Quick Test, the following drive cycle test for checking E4OD continuous codes should be performed.

- Faults have to appear four times consecutively for continuous codes 49, 59 and 69 to be set, and five times consecutively for continuous code 62.

- If any other service codes appear, service those codes first as they could affect the electrical operation of the transmission.

- After the servicing of any error codes resulting from the Quick Test, the Quick Test should be repeated.

- After the On-Board Diagnostics procedures are completed, service all DTCs.

- Begin with non-transmission related DTCs, then service any transmission related DTCs.

- Refer to the On-Board Diagnostic Trouble Code Description Chart for information on Condition and Symptoms. This chart will be helpful as a reference to aid in diagnosing internal transmission concerns and external non-transmission inputs.

- The Pinpoint Tests are used in diagnosing electrical concerns of the E4OD transmission. Make sure that the vehicle wiring harness and the powertrain control module are diagnosed as well.

- The vehicle wiring harness, powertrain control module and non-transmission sensors may affect transmission operations. Service these concerns first.