Verification Test VER-1A - Transmission Control System

1. Leave the DRB connected to the Data Link Connector (DLC)
- Reconnect any disconnected components.
- With the DRB, erase all trouble codes.
- With the DRB, display engine temperature.
- Start and run the engine until the engine temperature is HOT (above 180°F)

2. Check the transmission fluid. Adjust if necessary.

3. Road test the vehicle.
- With the DRB, monitor engine RPM.
- Make 15 to 20 1-2, 2-3, and 3-4 upshifts. Perform these shifts from a standing start to 55 MPH with a constant throttle opening of 20 to 25 degrees.
- Below 25 MPH, make 5 to 8 wide open throttle kickdowns to 1st gear. Allow at least 5 seconds each in 2nd and 3rd between each kickdown.

4. Check for trouble codes after the road test.
- If a trouble code sets during the test, perform test 1A.
- If no trouble codes set during the test, but transmission performance is unacceptable, perform test 2A.
- If no trouble codes were set and the transmission performance is acceptable, return the vehicle to the customer.