Test Description
WARNING: This page is about a different car, the 2005 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
- 2: Use the scan tool in order to inspect the voltage to the EBCM.
- 3: Use the scan tool in order to inspect the voltage to the dash integration module (DIM). A high voltage value in multiple modules indicates a concern in the charging system.
- 4: This step verifies that the condition is still present.
DTC C1237
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: ABS Schematics | ||||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 |
|
16.4 V | Go to Step 3 | Go to Diagnostic Aids |
| 3 | With a scan tool, observe the Battery Voltage parameter in Dash Integration Module data list. Does the scan tool indicate the voltage is greater than the specified value? |
16.4 V | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | Go to Step 4 |
| 4 |
|
- | Go to Step 5 | Go to Diagnostic Aids |
| 5 | Replace the electronic brake control module (EBCM). Refer to Control Module References
in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? |
- | Go to Step 6 | - |
| 6 |
|
- | Go to Step 2 | System OK |