Transmission Drive Cycle Test

Transmission Drive Cycle Test

Note:
^ The Transmission Drive Cycle Test must be followed exactly Malfunctions must occur four times consecutively for shift error DTC to be set, and five times consecutively for continuous torque converter clutch code to set.

Note:
^ When performing the Transmission Drive Cycle Test, see the Solenoid Application Chart for proper solenoid operation.

After performing the Quick Test, use the Transmission Drive Cycle Test for checking continuous codes.
1. Record and then erase Quick Test codes.
2. Warm engine to normal operating temperature.
3. Make sure transmission fluid level is correct.
4. With transmission in (Overdrive), moderately accelerate from stop to 80 km/h (50 mph). This allows the transmission to shift into fifth gear. Hold speed and throttle open steady for a minimum of 15 seconds.
5. With transmission in (Overdrive), press TCS (TCIL should illuminate) and moderately accelerate from stop to 64 km/h (40 mph). This allows the transmission to shift into third gear. Hold speed and throttle open steady for a minimum of 15 seconds (30 seconds above 4000 ft altitude).
6. Press TCS (TCIL should turn off) and accelerate from 64 km/h (40 mph) to 80 km/h (50 mph). This allows transmission to shift into fifth gear on. Hold speed and throttle position steady for a minimum of 15 seconds.
7. With transmission 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 a minimum of five seconds.
8. Brake to a stop and remain stopped for a minimum of 20 seconds.
9. Repeat Steps 4 through 8 at least five times.
10. Perform Quick Test and record continuous DTCs.