C0110

DTC C0110

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provides an overview of each diagnostic category.



DTC Descriptor
DTC C0110 00
- Pump Motor Circuit




Diagnostic Fault Information






Circuit/System Description

The electronic brake control module (EBCM) supplies ground to activate the Antilock Brake System (ABS) pump motor. An internal system relay in the EBCM supplies battery positive voltage to the pump motor when the ignition is turned ON. The EBCM monitors pump motor feedback voltage after activation to detect a stalled or binding pump motor.


Conditions for Running the DTC

* The ignition is ON.
* Initialization is complete.



Conditions for Setting the DTC

* The EBCM motor drive circuit detects a short to voltage on open ground circuit, or a continuously on or off motor.
* The pump motor continues to rotate briefly after activation creating a feedback voltage. The EBCM sets the code if the measured feedback voltage indicates a binding or stalled pump motor.



Action Taken When the DTC Sets

* The EBCM disables the ABS/TCS/VSES for the duration of the ignition cycle.
* The ABS indicator illuminates.
* The Traction Control and VSES indicators illuminate.
* The Traction Control and Stabilitrack are displayed on the DIC.



Conditions for Clearing the DTC

* The condition for the DTC is no longer present and the ECE 13 response is completed by driving the vehicle at speeds greater than 15 km/h (10 mph) to complete the self test, and the EBCM will turn off the ABS indicator.
* The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.



Reference Information
Schematic Reference

Antilock Brake System Schematics ([1][2]Antilock Brakes / Traction Control Systems)
Connector End View Reference

Component Connector End Views
Description and Operation

ABS Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing
* Connector Repairs
* Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information


Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.

* terminal 38
* terminal 13


• If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.

* terminal 25
* terminal 1


• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, replace the BPMV.

4. If all circuits test normal, replace the BPMV and verify DTC does not reset , if the DTC resets replace the EBCM.



Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

* Brake Pressure Modulator Valve Replacement (Service and Repair)
* Control Module References for EBCM replacement, setup, and programming