Test Description
WARNING: This page is about a different car, the 2005 Pontiac Vibe. 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.
- 4: This step tests the ignition positive voltage circuit for an open or short to ground. This step tests the EBCM ground circuits for an open or high resistance.
- 5: An open in the ABS indicator control circuit will keep the ABS indicator ON.
ABS Indicator Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: ABS Schematics Connector End View Reference: ABS Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Inspect for poor connections at the harness connector of the electronic brake control module (EBCM). Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 9 | Go to Step 3 |
| 3 | Measure the battery voltage. Is the battery voltage as specified? |
Go to Step 4 | Go to Symptoms - Engine Electrical in Engine Electrical |
| 4 |
|
Go to Step 9 | Go to Step 5 |
| 5 | Test the ABS indicator control circuit for a open or high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 9 | Go to Step 6 |
| 6 | Apply a ground to the ABS indicator control circuit. Is the ABS indicator ON? |
Go to Step 7 | Go to Step 8 |
| 7 | Replace the instrument panel cluster assembly. Refer to Instrument Panel Cluster (IPC) Replacement
in Instrument Panel, Gages, and Console. Did you complete the replacement? |
Go to Step 9 | - |
| 8 | Replace the brake pressure modulator valve (BPMV). Refer to Brake Modulator Assembly Replacement (Without VSC) or Brake Modulator Assembly Replacement (With VSC) . Is the repair complete? |
Go to Step 9 | - |
| 9 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |