Brake Warning Indicator Inoperative
- Did you review the brake warning system circuit description and perform the necessary inspections? If so, go to next step. If not, go to BRAKE WARNING SYSTEM DESCRIPTION under DESCRIPTION & OPERATION.
- With the ignition switch ON, observe the brake warning indicator and perform a brake warning system test by meeting each of the conditions described in BRAKE WARNING SYSTEM DESCRIPTION under DESCRIPTION & OPERATION. Did the brake indicator illuminate for each condition? If so, problem is intermittent. If not, go to next step.
- Is the brake indicator completely inoperative in all conditions? If so, go to step 18 . If not, go to next step.
- Did the brake indicator illuminate with the float manually held down? If so, go to next step. If not, go to step 7 .
- Did the brake indicator illuminate with the parking brake applied? If so, go to next step. If not, go to step 10 .
- Did the brake indicator illuminate with the ignition switch in START? If so, problem is intermittent. If not, go to step 15 .
- Disconnect the brake fluid level switch connector. Connect a 3-amp fused jumper wire between the brake indicator control circuit and the ground circuit. Turn ON the ignition switch. Does the brake indicator illuminate? If so, go to next step. If not, go to step 9 .
- Replace the brake fluid reservoir (which contains the fluid level switch). See MASTER CYLINDER RESERVOIR under REMOVAL & INSTALLATION. Did you complete the repair? If so, go to step 19 .
- Test the ground circuit of the brake fluid level switch for an open. Did you find and correct the condition? If so , go to step 19 . If not, go to step 17 .
- Disconnect the park brake switch connector. Connect a 3-amp fused jumper wire between the park brake signal circuit and ground. Turn ON the ignition switch. Does the brake indicator illuminate? If so, go to next step. If not, go to step 12 .
- Replace the park brake switch. See PARK BRAKE SWITCH under REMOVAL & INSTALLATION. After repair, go to step 19 .
- Disconnect the Daytime Running Lights (DRL) control module connector. DRL control module is located under instrument panel, to right of steering column. Connect a 3-amp fused jumper wire between the brake indicator control circuit and chassis ground. Turn ON the ignition switch. Does the brake indicator illuminate? If so, go to next step. If not, go to step 17 .
- Test the park brake signal circuit for an open. Did you find and correct the condition? If so, go to step 19 . If not, go to next step.
- Replace the DRL control module. DRL control module is located under instrument panel, to right of steering column. After repair, go to step 19 .
- Disconnect Gray 9-pin connector C203 (main harness to main switch, left lower side of instrument panel near junction block). Test the ignition switch for continuity in the START position. Is the circuit continuous? If so, go to step 17 . If not, go to next step.
- Replace the ignition switch. See appropriate STEERING COLUMN SWITCHES article in ACCESSORIES & EQUIPMENT. After repair, go to step 19 .
- Test the control circuit of the brake indicator for an open. Did you find and correct the condition? If so, go to step 19 . If not, go to next step.
- Repair/replace the instrument cluster printed circuit. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. After repair, 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 not, go to step 3 .