C0267

DTC C0267

DTC Descriptor

DTC C0267

- Low Brake Fluid Indicated

Diagnostic Fault Information

Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview





Circuit/System Description

The brake fluid level switch monitors the level of brake fluid in the master cylinder. When the body control module (BCM) sees the brake fluid level switch input grounded, it turns ON the red Brake 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 Antilock Brake System (ABS)/Traction Control System (TCS) dynamic rear proportion (DRP).
* The ABS indicator turns ON.
* The Traction Control indicator turns ON.
* The red brake warning indicator turns ON.

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.


Circuit/System Verification

Inspect the master cylinder reservoir for the proper brake fluid level.

If brake fluid level is low, refer to Brake Fluid Loss Diagnostic Information and Procedures. Brake Fluid Loss

Circuit/System Testing

Note: This test should only be performed if brake fluid is not low.

1. With the ignition OFF, disconnect the brake fluid level switch connector.
2. With the ignition ON, use a scan tool to observe the Brake Fluid Switch parameter in Antilock Brake data list.
* If the Brake Fluid Switch parameter is OK, replace the brake fluid level switch.
* If the Brake Fluid Switch parameter is Low, repair short to ground in signal circuit.

3. If all circuits test normal replace the BCM.

Repair Instructions

Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

* Brake Fluid Level Indicator Switch Replacement
* Refer to Programming and Relearning. Programming and Relearning


Repair Verification

Diagnostic Repair Verification