Pinpoint Test P : The Brake Warning Indicator Is Always On: Notes
The Brake Warning Indicator is Always On
Refer to Instrument Cluster for schematic and connector information.
Normal Operation and Fault Conditions
See Brake Warning Indicator and ABS/Brake/Stability-Traction Control System Indication descriptions and see Brake Fluid Level Switch component description. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the brake (red) warning indicator request, brake warning indicator request or red brake warning indicator request messages are missing for 5 seconds longer, the IPC defaults the brake warning indicator on.
BCM DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1048:01 | Brake Fluid Level Switch: General Electrical Failure | A continuous and on-demand DTC that sets in the BCM when the BCM detects an open on the brake fluid level switch input. |
| B1048:7B | Brake Fluid Level Switch: Low Fluid Level | An on-demand DTC that sets in the BCM if the BCM detects a low brake fluid level input from the brake fluid level switch. |
Possible Sources
- Wiring, terminals or connectors
- Brake fluid level switch
- Parking brake position switch
- Communication concern
- ABS concern
- BCM
- IPC
Visual Inspection and Diagnostic Pre-checks
Inspect the:
- base brake system and the parking brake system for correct operation.
- brake fluid level switch connection and check for signs of connector terminal damage, corrosion or pushed-out pins.
- brake fluid level switch wiring for signs of a cut or opened circuit.
- brake fluid level switch for signs of any external damage.