C005A

DTC C005A

Diagnostic Instructions

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

DTC Descriptor
DTC C005A 00
- Simultaneous Dropout of Both Wheel Speed Sensors on One Axle

Circuit/System Description

The wheel speed sensor receives ignition voltage from the electronic brake control module (EBCM) and provides a DC square wave signal back to the module. As the wheel spins, the EBCM uses the frequency of the square wave signal to calculate the wheel speed.

Conditions for Running the DTC

* Ignition ON.
* Ignition voltage is greater than 10 volts.
* Two other wheel speeds are greater than 0 km/h.

Conditions for Setting the DTC

Simultaneous Dropout of Both Wheel Speed Sensors on One Axle.

Actions Taken when the DTC Sets

* The EBCM disables the antilock brake system (ABS) and StabiliTrak 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 Electrical Diagrams
Connector End View Reference

Component Connector End Views Connector End Views By Name
Description and Operation

ABS Description and Operation ABS Hybrid
Electrical Information Reference

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

Scan Tool Reference

Control Module References Programming and Relearningfor scan tool information

Circuit/System Verification

Verify that DTC C005A is not set.

If the DTC is set, refer to DTC C0035-C0050, C1207-C1210, C1221-C1228, or C1232-C1235 C0035