The instrument panel cluster (IPC) turns the ABS Indicator on during the IPC bulb check for approximately 3 seconds when the ignition switch is turned to the ON position. If the EBCM sets a diagnostic trouble code (DTC) the EBCM sends the IPC the command to turn the ABS indicator on.
• | It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction. |
• | Thoroughly inspect any circuitry that may be causing the complaint for the following conditions: |
- | Backed out terminals |
- | Improper mating |
- | Broken locks |
- | Improperly formed or damaged terminals |
- | Poor terminal-to-wiring connections |
- | Physical damage to the wiring harness |
• | The following conditions may cause an intermittent malfunction: |
- | A poor connection |
- | Rubbed-through wire insulation |
- | A broken wire inside the insulation |
• | If an intermittent malfunction exists refer to Inducing Intermittent Fault Conditions in Wiring Systems. |
The numbers below refer to step numbers on the diagnostic table.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Antilock Brake System Schematics Connector End View Reference: Instrument Panel, Gages, and Console Connector End Views | |||
1 | Did you perform the ABS Diagnostic System Check? | Go to Step 2 | |
Using a scan tool in the Instrument Panel Cluster Special Functions attempt to turn off the ABS indicator. Did the ABS indicator turn off? | Go to Step 3 | Go to Step 4 | |
3 | Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Is the replacement complete? | Go to Step 5 | -- |
4 | Replace the instrument panel cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console. Is the replacement complete? | Go to Step 5 | -- |
5 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |