Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptor
DTC C0267 : Low Brake Fluid IndicatedDiagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Brake Warning Indicator Control Circuit | C0267 | -- | -- | -- |
Ground | -- | -- | -- | -- |
Circuit/System Description
The brake fluid level switch monitors the level of brake fluid in the master cylinder. When the instrument panel cluster (IPC) sees the brake warning indicator control circuit grounded, it turns ON the brake warning indicator and sends a serial data message to the electronic brake control module (EBCM) that tells the EBCM that the brake fluid level is low.
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
Low brake fluid is detected.
Action Taken When the DTC Sets
| • | The EBCM disables the ABS/TCS/DRP for the duration of the ignition cycle. |
| • | The ABS indicator turns ON. |
| • | The Traction Control indicator turns ON. |
| • | The red brake warning indicator turns ON. |
| • | The driver information center (DIC) displays the SERVICE BRAKE SYSTEM/TRACTION SYSTEM message. |
Conditions for Clearing the DTC
| • | The condition for the DTC is no longer present and the DTC is cleared with a scan tool. |
| • | The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles. |
Reference Information
Schematic Reference
Connector End View Reference
Antilock Brake System Connector End Views
Electrical Information Reference
Scan Tool Reference
Circuit/System Verification
Inspect the master cylinder reservoir for the proper brake fluid level.
| ⇒ | If brake fluid level is low, refer to Hydraulic Brake System Diagnosis . |
Circuit/System Testing
Important: This test should only be performed if brake fluid is not low.
- With the park brake released and the ignition OFF, disconnect the brake fluid level switch connector. Ignition ON, verify the brake indicator lamp on IPC is illuminated.
- With the ignition ON, use a scan tool to observe the Brake Fluid Switch parameter in IPC. Verify parameter is OK.
- Replace the IPC.
| ⇒ | If the Brake indicator lamp is not illuminated, replace the brake fluid level switch. |
| ⇒ | If the Brake Fluid Switch parameter is Low, repair short to ground in the brake warning indicator control circuit. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for IPC replacement, setup, and programming |
