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Brake Warning Indicator Inoperative

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix and 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Did you review the hydraulic brakes operation and perform the necessary inspection? If so, go to next step. If not, go to SYMPTOMS (HYDRAULIC BRAKE)  under TROUBLE SHOOTING.
  2. Turn on the ignition, with the engine off. Observe the brake warning indicator. Does the brake warning indicator illuminate briefly during the bulb check? If so, go to next step. If not, go to step  11 .
  3. Turn on the ignition, with the engine off. Apply the park brake. Does the brake warning indicator illuminate? If so, go to next step. If not, go to step  7 .
  4. Turn off the ignition. Release park brake. Disconnect the brake fluid level indicator switch. Connect a 3-amp fused jumper wire between the signal circuit of the brake fluid level indicator switch and a good ground. Does the brake warning indicator illuminate? If so, go to next step. If not, go to step  9 .
  5. Inspect for poor connections or a poor ground at the brake fluid level indicator switch. Did you find and correct the condition? If so, go to step  17 . If not, go to next step.
  6. Inspect brake fluid level indicator switch for proper operation. Does brake fluid level indicator switch work properly? If so, test for intermittent and/or poor connections. If not, go to step  15 .
  7. Disconnect the park brake warning light switch. Connect a 3-amp fused jumper wire between the signal circuit of the park brake warning lamp switch and ground. Does the brake warning indicator illuminate? If so, go to step  10 . If not, go to next step.
  8. Turn off the ignition. Disconnect the body control module. Test the signal circuit of the park brake warning lamp switch for a high resistance or an open. Did you find and correct the condition? If so, go to step  17 . If not, go to step  12 .
  9. Turn off the ignition. Disconnect the instrument panel cluster. Test the signal circuit of the brake fluid level indicator switch for a high resistance or an open. Did you find and correct the condition? If so, go to step  17 . If not, go to step  11 .
  10. Inspect for poor connections or a poor case ground at the park brake warning lamp switch. Did you find and correct the condition? If so, go to step  17 . If not, go to step  13 .
  11. Inspect for poor connections at the harness connector of the instrument cluster. Did you find and correct the condition? If so, go to step  17 . If not, go to step  14 .
  12. Inspect for poor connections at the harness connector of the Body Control Module. Did you find and correct the condition? If so, go to step  17 . If not, go to step.
  13. Replace the park brake warning lamp switch. See PARK BRAKE WARNING LIGHT SWITCH  under REMOVAL & INSTALLATION. After repairs are complete, go to step  17 .
  14. Replace the Instrument Panel Cluster (IPC). See appropriate INSTRUMENT PANEL CLUSTER article in GAUGES & INSTRUMENT PANELS in ACCESSORIES & EQUIPMENT. After repairs are complete, go to step  17 .
  15. Replace the brake fluid level indicator switch. See MASTER CYLINDER FLUID LEVEL SENSOR  under REMOVAL & INSTALLATION. After repairs are complete, go to step  17 .
  16. Replace the Body Control Module. See BODY CONTROL MODULES in ACCESSORIES & EQUIPMENT. After repairs are complete, go to next step.
  17. After repairs are complete, system is okay. If not, go to step  2 .
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