Test Description
WARNING: This page is about a different car, the 2004 Chevrolet Monte Carlo and 2004 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
- 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 body control module. A high voltage value in multiple modules indicates a concern in the charging system.
- 4: Verifies that the condition is still present.
DTC C1237
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| Schematic Reference: ABS Schematics | ||||
| 1 | Did you perform the ABS Diagnostic System Check? | - | Go to Step 2 | Go to Diagnostic System Check - ABS |
| 2 |
|
16.3 V | Go to Step 3 | Go to Diagnostic Aids |
| 3 | With a scan tool, observe the Electronics Battery Fd parameter in the Body Control Module data list. Does the scan tool indicate the voltage is greater than the specified value? |
16.3 V | Go to Diagnostic System Check - Engine Electrical in Engine Electrical | Go to Step 4 |
| 4 |
|
- | Go to Step 5 | Go to Diagnostic Aids |
| 5 | Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Did you complete the repair? |
- | Go to Step 6 | - |
| 6 |
|
- | Go to Step 2 | System OK |