DTC C056D
Diagnostic Instructions
DTC Descriptor
DTC C056D 00: Electronic Control Unit Hardware Internal Error
Circuit/System Description
The electronic control module (EBCM) detects an internal malfunction.
Conditions for Running the DTC
• | Ignition voltage is greater than 8 volts. |
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
• | The EBCM disables the antilock brake system (ABS)/traction control system (TCS)/vehicle stability enhancement system (VSES) for the duration of the ignition cycle. |
• | ABS warning indicator may be displayed. |
Conditions for Clearing the DTC
• | The condition for setting the DTC is no longer present. |
• | The EBCM automatically clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles. |
• | The DTC can be cleared using a scan tool. |
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 for scan tool information
Circuit/System Verification
Verify DTC C056D is not set.
⇒ | If DTC is set, replace the EBCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for EBCM replacement, setup, and programming.
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