48RE Automatic Transmission - Diesel

TRANSMISSION VERIFICATION TEST VER - 1 (DIESEL)


1. Inspect the vehicle to ensure that all engine and transmission components are properly installed and connected. Reassemble and reconnect components as necessary.

2. If any existing diagnostic trouble codes have not been repaired, go to Symptom List and follow path specified.

3. Connect a scan tool to the data link connector.

4. Ensure the fuel tank has at least a quarter tank of fuel. Turn off all accessories.

5. Start and run the engine until the transmission temperature is above 43� C (110� F).

6. Check the transmission fluid level. Adjust if necessary.

7. Road test the vehicle. Make 15 to 20 1-2, 2-3 and 3-4 up shifts.

Perform these shifts from a standing start to 72 Kmh (45 mph) with a constant throttle opening of 20-25%.

8. Below 40 Kmh (25 mph), make 5 to 8 wide open throttle kick downs to 1st gear. Allow at least 5 seconds each in 2nd and 3rd between each kick down.

9. For a specific DTC, drive the vehicle in accordance with the Symptom's When Monitored and Set Conditions to verify the repair.

10. If a DTC sets during the road test, return to the Symptom List and follow the path. If no DTC sets, the repair is complete.

Are there any DTCs or symptoms remaining?

Yes

- Repair is not complete, refer to appropriate symptom.

No

- Repair is complete.