Instrument Cluster / Carrier: Testing and Inspection

Rewriting the ODO Data on a New Gauge Control Module

NOTE: If the HDS retrieves the ODO data from the gauge control module, the ODO value on the multi information display (MID) will appear as "- - -", making the ODO function unusable, and the HDS will be unable to retrieve additional ODO values.

Rewriting the ODO Data and Transferring Smart Maintenance on a New Gauge Control Module

NOTE:
- Obtain a new gauge control module before starting the rewriting process.
- Rewriting is not possible on a gauge control module that will not communicate with the HDS.
- Make sure that the HDS shows the correct VIN for the car you are working on.
- One you have started this procedure, you must complete it before removing the HDS from the DLC.
- Connect a battery jump box (not a Battery charger) to insure that correct battery voltage will be maintained.

1. Before replacing the gauge control module, connect the HDS.
2. Select GAUGES from the BODY ELECTRICAL menu display.
3. Select "Gauge Control Module Replacement (ODO rewrite)" from the ADJUSTMENT menu, and follow the instructions on the display to retrieve the ODO value and the Smart Maintenance information.
4. Replace the gauge control module.
5. Follow the instructions on the display to write the new ODO value and Smart maintenance to the new gauge control module. If the data transfer fails, refer to the instructions to release the locked ODO value.

Release Locked odometer mileage to the original gauge control module

If after you attempt to transfer mileage the odometer has dashes (- - -), garbled, or incorrect value displayed, do the following Start over. The original gauge control module is going to be unlocked and restored to its original state.

1. Confirm that you have the latest HDS version of software.
2. Make sure that the HDS shows the correct VIN for the car you are working on.
3. With the ignition switch OFF, reconnect the original gauge assembly.
4. Completely re-boot the HDS.
5. Clear any stored DTCs.
6. Navigate to Body Electric/Gauges/Adjustment/Instrument Panel Replacement.
7. Select "3. Releasing Locked ODO Value".
8. Follow the prompts and the Odometer mileage will be restored.
9. Start over and make sure the screen prompts are followed.