AX4N

Transaxle Drive Cycle Test

Note: The Transaxle Drive Cycle Test must be followed exactly. Malfunctions have to occur four times consecutively for DTCs 645, 646, 647 and 648 to be set, and five times consecutively for continuous DTCs 628 and 656.

After performing the Quick Test, use the following Transaxle Drive Cycle Test for checking AX4N continuous codes:

Note: When performing the Transaxle Drive Cycle Test, refer to the Solenoid Application Chart for proper solenoid operation.

1. Record and then erase Quick Test codes.
2. Warm engine to normal operating temperature.
3. Make sure transaxle fluid level is correct.
4. With transaxle In OVERDRIVE, moderately accelerate from stop to 80km/h (50mph). This allows the transaxle to shift into fourth gear. Hold speed and throttle opening steady for a minimum of 15 seconds.
5. With transaxle in fourth gear and maintaining steady speed and throttle opening, lightly apply and release brake (to operate stoplamps). Then hold speed and throttle steady for an additional five seconds minimum.
6. Brake to a stop and remain stopped for a minimum of 20 seconds.
7. Repeat Steps 4 through 6 at least five times.
8. Perform Quick Test and record continuous codes.
- If DTCs are present, go to the Diagnostic Trouble Code Description Chart for service information. Service all non-transaxle DTCs first as they can directly affect the operation of the transaxle. Repeat the Quick Test and Road Test to verify the correction. Erase DTCs, perform drive cycle and repeat the Quick Test after completing service on the DTCs.
- If the continuous test passes (111) and a concern is still present, refer to the Diagnosis by Symptom Routines under Automatic Transmission/Transaxle and TSBs for concern diagnostics.