Transmission Drive Cycle Test: Notes

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 shift error DTC to be set, and 5 times consecutively for continuous Torque Converter Clutch (TCC) code to set.

NOTE: When carrying out the Transmission Drive Cycle Test, refer to the SOLENOID OPERATION CHART for correct solenoid operation.

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

Record and then erase Self Test codes.
Warm engine to normal operating temperature.
Make sure transmission fluid level is correct.
With the selector lever in Overdrive (Circle D)and the transmission in Overdrive (O/D), moderately accelerate from stop to 80 km/h (50 mph). This allows the transmission to shift into 4th gear. Hold speed and throttle open steady for a minimum of 15 seconds.
With the transmission in 4th gear and maintaining steady speed and throttle opening, lightly apply and release the brake pedal to operate the stoplamps. Then hold speed and throttle steady for a minimum of 5 seconds.
Brake to a stop and remain stopped for a minimum of 20 seconds.
Repeat Steps 4 through 6 at least 5 times.
Carry out Self Test and record continuous DTCs.
- If the DTCs are still present, refer to the Diagnostic Trouble Code (DTC) Charts . 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.
- If the continuous test passes and a concern is still present, refer to Diagnosis By Symptom in this article and TSBs for concerns.