DTC C0179
Diagnostic Instructions
DTC Descriptor
DTC C0179 54: System Thermal High
Circuit/System Description
The electronic brake control module (EBCM) monitors the duration and how many times antilock brakes or the traction control is activated to calculate an estimated temperature of the brake components to prevent overheating.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
The EBCM detects the temperature of the brakes is too high.
Action Taken When the DTC Sets
| • | The EBCM disables the traction control system (TCS)/vehicle stability enhancement system (VSES). |
| • | A warning indicator on the information display module may be displayed. |
Conditions for Clearing the DTC
| • | The EBCM calculates the brakes have cooled sufficiently. |
| • | The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles. |
Diagnostic Aids
DTC C0179 does not indicate a malfunction has occurred. This DTC indicates there was excessive ABS or Traction Control activation that could cause high temperatures.
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
ABS Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References
Circuit/System Verification
Verify that the DTC sets outside of the Conditions for Running and Setting. Since most occurrences of this DTC are caused by an excessive braking or Traction Control usage, review with the customer the conditions under which the DTC set.
| ⇒ | If the DTC set within the Conditions for Running and Setting, the brake system is operating as designed. |
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