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Brake Warning Indicator Inoperative

WARNING: This page is about a different car, the 2002 Cadillac Eldorado. 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 inspections? If so, go to next step. If not, go to step SYMPTOMS - HYDRAULIC BRAKE  .
  2. Turn OFF the ignition. Turn ON the ignition, with the engine OFF. Observe the Red Brake indicator. Does the Red Brake indicator illuminate briefly during the bulb check? If so, go to next step. If not, go to step  11 .
  3. Apply the park brake. Does the Red Brake indicator illuminate? If so, go to next step. If not, go to step  5 .
  4. Turn OFF the ignition. Release the park brake. Disconnect the brake fluid level switch. Connect a 3-amp fused jumper wire between the signal circuit of the brake fluid level switch and a the ground circuit of the brake fluid level switch. Turn ON the ignition, with the engine OFF. Does the Red Brake indicator illuminate? If so, go to step  10 . If not, go to step  7 .
  5. Turn OFF the ignition. Disconnect the park brake switch. Connect a 3-amp fused jumper wire between the signal circuit of the park brake switch and a good ground. Turn ON the ignition, with the engine OFF. Does the Red Brake indicator illuminate? If so, go to step  9 . If not, go to next step.
  6. Test the signal circuit of the park brake switch for a high resistance or a open. Did you find and correct the condition? If so, go to step  15 . If not, go to step  11 .
  7. Test the signal circuit of the brake fluid level switch for a high resistance or a open. Did you find and correct the condition? If so, go to step  15 . If not, go to next step.
  8. Test the ground circuit of the brake fluid level switch for a high resistance or an open. Did you find and correct the condition? If so, go to step  14 . If not, go to step  11 .
  9. Inspect for poor case ground or poor connections at the harness connector of the park brake switch. Did you find and correct the condition? If so, go to step  14 . If not, go to step  12
  10. Inspect for poor connections at the harness connector of the brake fluid level switch. Did you find and correct the condition? If so, go to step  14 . If not, go to step  13
  11. Inspect for poor connections at the harness connector of the IPC. Did you find and correct the condition? If so, go to step  14 . If not, go to step  14
  12. Replace the park brake switch. See PARK BRAKE WARNING LAMP SWITCH  under REMOVAL & INSTALLATION. Did you complete the repair? If so, go to step  15 .
  13. Replace the brake fluid level switch. See MASTER CYLINDER FLUID LEVEL SENSOR  under REMOVAL & INSTALLATION. Did you complete the repair? If so, go to step  15 .
  14. Replace the Instrument Panel Cluster (IPC). See appropriate INSTRUMENT PANEL article in ACCESSORIES & EQUIPMENT. Did you complete the repair? If so, go to next step.
  15. 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  2 .
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