Operation CHARM: Car repair manuals for everyone.

Monitors, Trips, Drive Cycles and Readiness Codes



Transaxle Drive Cycle Test

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

NOTE: The Transaxle Drive Cycle Test must be followed exactly.

NOTE: The Transaxle Drive Cycle Test can be used to help diagnose NVH concerns.

1. Warm engine to normal operating temperature.

2. Make sure transmission fluid level is correct.

3. While checking the transaxle for a noise or vibration, with the selector lever in P, quickly press the accelerator pedal to Wide Open Throttle (WOT), let off the accelerator pedal for 5 seconds. Repeat 2 times. Record any noise or vibration.

4. While checking the transaxle for a noise or vibration, with the selector lever in P, raise engine speed to 1,500 rpm and perform a tip in/out. Record any noise or vibration.

5. While checking the transaxle for a noise or vibration, with the selector lever in D, EV-Mode (engine off), drive the vehicle around. Record any noise or vibration.

6. While checking the transaxle for a noise or vibration, with the selector lever in D, drive the vehicle 0-72 km/h (0-45 mph), light acceleration. Record any noise or vibration.

7. While checking the transaxle for a noise or vibration, with the selector lever in D, drive the vehicle 0-72 km/h (0-45 mph), medium acceleration. Record any noise or vibration.

8. While checking the transaxle for a noise or vibration, with the selector lever in D, drive the vehicle 0-72 km/h (0-45 mph), hard acceleration. Record any noise or vibration.

10. While checking the transaxle for a noise or vibration, with the selector lever in D, drive the vehicle 64 km/h (40 mph), cruising speed, perform tip in/out. Record any noise or vibration.


Once the Transaxle Drive Cycle Test has been performed, Go to Symptom Chart-NVH. Symptom Chart - Noise, Vibration, and Harshness (NVH)