Brake Warning Indicator Always On
Brake Warning Indicator Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Brake Warning System Schematics Connector End View Reference: ABS Connector End Views |
|||
| 1 | Did you perform the Hydraulic Brake Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Hydraulic Brakes |
| 2 | Inspect the brake fluid level. Is the brake fluid level OK? |
Go to Step 3 | Go to Hydraulic Brake System Bleeding (Manual) or Hydraulic Brake System Bleeding (Pressure) |
| 3 |
|
Go to Step 4 | Go to Step 5 |
| 4 | With a scan tool, observe the Brake Fluid Switch parameter in the DRP/ABS/TCS/VSES data list. Does the scan tool indicate that the Brake Fluid Switch parameter is OK? |
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 6 |
| 5 |
|
Go to Step 9 | Go to Step 7 |
| 6 |
|
Go to Step 10 | Go to Step 8 |
| 7 | Test the signal circuit of the park brake switch 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 15 | Go to Step 11 |
| 8 | Test the signal circuit of the brake fluid level switch 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 15 | Go to Step 11 |
| 9 | Inspect for poor connections at the harness connector of the park brake switch. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 15 | Go to Step 12 |
| 10 | Inspect for poor connections at the harness connector of the brake fluid level switch. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 15 | Go to Step 13 |
| 11 | Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 15 | Go to Step 14 |
| 12 | Replace the park brake switch. Refer to Park Brake Warning Lamp Switch Replacement (LHD)
or Park Brake Warning Lamp Switch Replacement (RHD)
in Park Brake. Did you complete the repair? |
Go to Step 15 | - |
| 13 | Replace the brake fluid level switch. Refer to Master Cylinder Fluid Level Sensor Replacement . Did you complete the repair? |
Go to Step 15 | - |
| 14 | Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement
in Instrument Panel, Gages and Console. Did you complete the repair? |
Go to Step 15 | - |
| 15 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |