Diagnostic Instructions
DTC Descriptors
DTC C0201 04: Antilock Brake System (ABS) Enable Relay Contact Circuit Open
DTC C120D: Antilock Brake System (ABS) Enable Relay Contact Circuit Open
DTC C0201 0E: Antilock Brake System (ABS) Enable Relay Contact Circuit Resistance Below Threshold
DTC C120E: Antilock Brake System (ABS) Enable Relay Contact Circuit Resistance Below Threshold
Circuit/System Description
The solenoid relay, located within the electronic brake control module (EBCM), supplies battery voltage to all of the valve solenoids.
Conditions for Running the DTC
C0201 04 or C120D
| • | Ignition voltage is greater than 10 volts. |
| • | The solenoid relay is commanded ON. |
C0201 0E or C120E
| • | Ignition voltage is greater than 10 volts. |
| • | The solenoid relay is commanded OFF. |
Conditions for Setting the DTC
C0201 04 or C120D
| • | The EBCM detects an open in the circuits to the solenoid valve relay. |
| • | The EBCM detects a stuck open solenoid valve relay. |
C0201 0E or C120D
| • | The EBCM detects an short to battery in the circuits to the solenoid valve relay. |
| • | The EBCM detects a stuck closed solenoid valve relay. |
Action Taken When the DTC Sets
| • | The EBCM disables the antilock brake system (ABS) and the vehicle stability enhancement system (VSES) for the duration of the ignition cycle. |
| • | A DIC message and/or a warning indicator may be displayed. |
Conditions for Clearing the DTC
| • | The condition for setting the DTC is no longer present. |
| • | The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles. |
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 that DTC C0201, C120D, or C120E is not set.
| ⇒ | If DTC is set replace EBCM. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for EBCM replacement, setup, and programming
