C1247

DTC C1247

Circuit 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 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.

DTC Descriptor
This diagnostic procedure supports the following DTC:
^ DTC C1247 Low Brake Fluid Detected

Conditions for Running the DTC
The ignition is ON.

Conditions for Setting the DTC
The EBCM receives a serial data message from the IPC indicating that the brake fluid level is low.

Action Taken When the DTC Sets
^ The EBCM disables the Traction Control System (TCS) until the DTC becomes a history DTC.
^ The red Brake warning indicator turns ON.
^ The Traction Off indicator turns ON.
^ The message center displays the Service Traction System message.
^ The Antilock Brake System (ABS) remains functional.

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.

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

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