Brake Warning Indicator Always On
Brake Warning Indicator Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Brake Warning System Schematics Connector End View Reference: Hydraulic Brake Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Check the fluid level in the master cylinder brake fluid reservoir. Is the brake fluid level OK? |
Go to Step 3 | Go to Master Cylinder Reservoir Filling |
| 3 |
|
Go to Step 6 | Go to Step 4 |
| 4 |
|
Go to Step 11 | Go to Step 5 |
| 5 | Test the park brake switch signal circuit for a short to ground. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 13 | Go to Step 12 |
| 6 | With a scan tool, observe the Brake Fluid Level Switch parameter in the instrument panel data list. Does the scan tool indicate that the Brake Fluid Level Sensor parameter is OFF? |
Go to Step 10 | Go to Step 7 |
| 7 | Disconnect the brake fluid level sensor harness connector. Does the scan tool indicate that the Brake Fluid Level Switch parameter is OFF? |
Go to Step 9 | Go to Step 8 |
| 8 | Test the brake fluid level signal circuit for a short to ground. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 13 | Go to Step 10 |
| 9 | Replace the brake fluid level sensor. Refer to Brake Fluid Level Indicator Switch Replacement . Did you complete the replacement? |
Go to Step 13 | - |
| 10 | Replace the instrument panel cluster (IPC). Refer to Control Module References
in Computer/Integrating Systems. Did you complete the replacement? |
Go to Step 13 | - |
| 11 | Replace the park brake switch. Refer to Parking Brake Indicator Switch Replacement
in Park Brake. Did you complete the repair? |
Go to Step 13 | - |
| 12 | Replace the body control module (BCM). Refer to Control Module References
in Computer/Integrating Systems. Did you complete the replacement? |
Go to Step 13 | - |
| 13 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |