Brake Warning Indicator Always On
WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
- Did you perform the Hydraulic Brake Diagnostic System Check? If so, go to next step. If not, go to DIAGNOSTIC SYSTEM CHECK .
- Turn ON the ignition, with the engine OFF. Release the park brake. With a scan tool, observe the PARK BRAKE TELLTALE parameter in the INSTRUMENT PANEL CLUSTER data list. Does the scan tool indicate that the PARK BRAKE TELLTALE parameter is Off? If so, check for an intermittent condition, see INTERMITTENT in SYMPTOMS - HYDRAULIC BRAKE under TROUBLE SHOOTING. If not, go to next step.
- Turn OFF the ignition. Disconnect the park brake switch. Turn ON the ignition, with the engine OFF. With a scan tool, observe the PARK BRAKE TELLTALE parameter. Does the scan tool indicate that the PARK BRAKE TELLTALE parameter is Off? If so, go to step 5 . If not, go to next step.
- Test the signal circuit of the park brake switch for a short to ground. Did you find and correct the condition? If so, go to step 9 . If not, go to step 6 .
- Inspect for poor connections at the harness connector of the park brake switch. Did you find and correct the condition? If so, go to step 9 . If not, go to step 7 .
- Inspect for poor connections at the harness connector of the instrument cluster (IPC). Did you find and correct the condition? If so, go to step 9 . If not, go to step 8 .
- Replace the park brake switch. See PARK BRAKE WARNING LAMP SWITCH under REMOVAL & INSTALLATION. Did you complete the repair? If so, go to step 9 .
- Replace the instrument cluster (IPC). See appropriate INSTRUMENT PANEL article in ACCESSORIES & EQUIPMENT. Did you complete the repair? If so, go to next step.
- Operate the system in order to verify the repair. Did you correct the condition? If so, then system is okay. If system is not okay, go to step 2 .