8HP45 Transmission Verification Test

TRANSMISSION VERIFICATION TEST

To validate the repair(s) that fixed the vehicle, perform the following steps.

1. Reconnect any disconnected components.
2. Connect the scan tool to the Data Link Connector.
3. With the scan tool, erase ABS DTCs.
4. With the scan tool, erase PCM DTCs.
5. With the scan tool, erase TCM DTCs.

CAUTION: Apply the parking brake.

6. With the scan tool, display the Transmission Temperature. Start and run the engine until the transmission temperature is above 43° C (110° F).
7. If internal transmission components were repaired or replaced check the transmission fluid and adjust if necessary. Refer to the CHECK OIL LEVEL procedure. Check Oil Level
8. If internal transmission repairs are performed or the Transmission Control Module Assembly (TCMA) is replaced, perform a TCM ADAPTATION procedure. 8HP45
9. After performing the above procedures, perform the Road Test Procedure.

ROAD TEST PROCEDURE

1. Road test the vehicle. Make fifteen to twenty upshifts so all gear ranges are complete.
2. Perform these shifts from a standing start to 72 Km/h (45 mph) with a constant throttle opening of 20 to 25 degrees.
3. With speeds below 40 Km/h (25 mph), make five to eight wide open throttle kickdowns to 1st gear. Allow at least 5 seconds each in 2nd and 3rd gear between each kickdown.
4. With the scan tool, read DTCs.

Did any DTCs set?

Yes

- Refer to DTC-Based Diagnostics and perform the appropriate diagnostic procedure.

No

- Testing is complete.