Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Brake Warning System Schematics Definition: Brake Warning Indicator Inoperative | |||
1 | Did you review the brake warning system circuit description and perform the necessary inspections? | Go to Step 2 | |
2 | 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 the circuit description. Did the brake indicator illuminate for each condition? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Is the brake indicator completely inoperative in all conditions? | Go to Step 18 | Go to Step 4 |
4 | Did the brake indicator illuminate with the float manually held down? | Go to Step 5 | Go to Step 7 |
5 | Did the brake indicator illuminate with the parking brake applied? | Go to Step 6 | Go to Step 10 |
6 | Did the brake indicator illuminate with the ignition switch in START? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 15 |
7 |
Does the brake indicator illuminate? | Go to Step 8 | Go to Step 9 |
8 | Replace the brake fluid reservoir (which contains the fluid level switch). Refer to Master Cylinder Reservoir Replacement . Did you complete the repair? | Go to Step 19 | -- |
9 | Test the ground circuit of the brake fluid level switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 19 | Go to Step 17 |
10 |
Does the brake indicator illuminate? | Go to Step 11 | Go to Step 12 |
11 | Replace the park brake switch. Refer to Park Brake Lever Assembly Replacement in Park Brake. Did you complete the repair? | Go to Step 19 | -- |
12 |
Does the brake indicator illuminate? | Go to Step 13 | Go to Step 17 |
13 | Test the park brake signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 19 | Go to Step 14 |
14 | Replace the DRL control module. Refer to Daytime Running Lights (DRL) Control Module Replacement in Lighting Systems. Did you complete the repair? | Go to Step 19 | -- |
15 |
Is the circuit continuous? | Go to Step 17 | Go to Step 16 |
16 | Replace the ignition switch. Did you complete the repair? | Go to Step 19 | -- |
17 | Test the control circuit of the brake indicator for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 19 | Go to Step 18 |
18 | Repair/replace the instrument cluster printed circuit. Refer to Flat Wire Repairs in wiring systems or Printed Instrument Cluster Circuit Replacement in Instrument Panel, Gauges and Console. Did you find and correct the condition? | Go to Step 19 | -- |
19 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
