Circuit Description
The electronic brake control module (EBCM) monitors the brake fluid level in the master cylinder reservoir via the brake fluid level switch.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0267 Low Brake Fluid Indicated
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
The EBCM detects a low brake fluid level condition.
Action Taken When the DTC Sets
The brake warning indicator turns ON.
Conditions for Clearing the DTC
The conditions for setting the DTC are no longer present and you use the scan tool Clear DTCs function.
Diagnostic Aids
A lower than normal brake fluid level in the master cylinder may cause the brake fluid level switch to close when the vehicle makes sharp turns or sudden stops. Low brake fluid level may be caused by a brake fluid leak or worn disc brake pads.
Thoroughly inspect connections or circuitry that may cause an intermittent malfunction. Refer to Testing for Electrical Intermittents , Testing for Intermittent and Poor Connections. Refer to Testing for Intermittent Conditions and Poor Connections . Wiring Repairs and Connector Repairs in Wiring Systems. Refer to Wiring Repairs .
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Brake Warning System Schematics Connector End Views 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 |
Does the DTC set? | Go to Step 3 | Go to Diagnostic Aids |
3 | Inspect the brake fluid level in the master cylinder reservoir. Refer to Master Cylinder Reservoir Filling . Did you find and correct the condition? | Go to Step 8 | Go to Step 4 |
4 |
Does the scan tool display Low? | Go to Step 6 | Go to Step 5 |
5 | Replace the brake fluid level switch. Refer to Brake Fluid Level Indicator Switch Replacement . Did you complete the replacement? | Go to Step 8 | -- |
6 |
Did you find and correct the condition? | Go to Step 8 | Go to Step 7 |
7 | Replace the EBCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 8 | -- |
8 |
Does the DTC reset? | Go to Step 3 | System OK |
