Test Description
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. 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 body control module (BCM). 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 | Values | 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 Battery Volts parameter in 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 |