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Brake Warning Indicator Always On

  1. Did you perform the Hydraulic Brake Diagnostic System Check? If so, go to next step. If not, go to DIAGNOSTIC SYSTEM CHECK  .
  2. 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, condition is intermittent. If not, go to next step.
  3. 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.
  4. 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 .
  5. 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 .
  6. 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 .
  7. Replace the park brake switch. See PARK BRAKE WARNING LAMP SWITCH  under REMOVAL & INSTALLATION. After repairs are complete, go to step  9 .
  8. Replace the instrument cluster (IPC). See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. After repairs are complete, go to next step.
  9. 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 .
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