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 | |
3 |
Does the scan tool indicate that the Park Brake Switch parameter is Off? | Go to Step 6 | Go to Step 4 |
4 |
Does the scan tool indicate that the Park Brake Switch parameter is Off? | 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 Sensor parameter in the Body Control Module data list. Does the scan tool indicate that the Brake Fluid Level Sensor parameter is OK? | 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 Sensor parameter is OK? | 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 Instrument Cluster Replacement in Instrument Panel, Gages and Console. 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. Refer to Body Control Module Replacement 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 |
