Monitors, Trips, Drive Cycles and Readiness Codes

5R44E and 5R55E

Transmission Drive Cycle Test

NOTE: Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws.

NOTE: The Transmission Drive Cycle Test must be followed exactly. Malfunctions must occur 4 times consecutively for a shift error DTC code to be set and 5 times consecutively for continuous Torque Converter Clutch (TCC) codes to set.

NOTE: While carrying out the Transmission Drive Cycle Test, refer to the Solenoid Application Chart for correct solenoid operation.

After carrying out the Self Test, use the Transmission Drive Cycle Test for checking continuous codes.

1. Record and then clear Self Test codes.

2. Warm the engine to normal operating temperature.

3. Make sure the transmission fluid level is correct.

4. With selector lever in (D), moderately accelerate from stop to 80 km/h (50 mph). This allows the transmission to shift into 5th gear. Hold speed and throttle open steady for a minimum of 15 seconds.

5. With the transmission in 5th gear and maintaining steady speed and throttle opening, lightly apply and release the brake to operate stop lamps. Then hold vehicle speed and throttle steady for a minimum of 5 seconds.

6. Brake to a stop and remain stopped for a minimum of 20 seconds.

7. Repeat Steps 4 through 6 at least 5 times.

8. Carry out Self Test and record DTCs.
- If the DTCs are still present, refer to the DTC Chart. Repair all non-transmission DTCs first as they can directly affect the operation of the transmission. Repeat the Self Test and the Road Test to verify the correction. Clear the DTCs, carry out the Drive Cycle Test and repeat the Self Test after completing repair on the DTC. Diagnostic Trouble Code Tests and Associated Procedures

- If the continuous test passes and a concern is still present, refer to Diagnosis By Symptom Diagnosis By Symptom and TSBs for concerns.


After On-Board Diagnostic (OBD)

NOTE: The vehicle wiring harness, PCM and non-transmission sensors may affect transmission operations. Repair these concerns first.

After the On-Board Diagnostic (OBD) procedures are completed, repair all DTCs.

Begin with non-transmission-related DTCs, then repair any transmission-related DTCs. Refer to the DTC Chart for information on conditions and symptoms. This chart will be helpful in referring to the correct manual(s) and aids in diagnosing internal transmission concerns and external non-transmission inputs. The pinpoint tests are used in diagnosing transmission electrical concerns. Make sure that the vehicle wiring harness and the PCM are diagnosed as well. Computers and Control Systems Information will aid in diagnosing non-transmission electronic components. Diagnostic Trouble Code Tests and Associated Procedures


Before Pinpoint Tests

NOTE: Prior to entering pinpoint tests, check the PCM wiring harness for correct connections, bent or broken terminals, corrosion, loose wires, correct routing, correct seals and their condition. Check the PCM, sensors and actuators for damage. Refer to Computers and Control Systems Information.

NOTE: If a concern still exists after electrical diagnosis has been carried out, refer to Diagnosis By Symptom Diagnosis By Symptom.

If DTCs appear while carrying out the OBD tests, refer to the DTC Chart for the appropriate repair procedure. Prior to entering pinpoint tests, refer to Computers and Control Systems Information and any TSBs for transmission concerns. Diagnostic Trouble Code Tests and Associated Procedures