Antilock Brakes / Traction Control Systems

DTC C0899

DTC Descriptor

DTC C0899

Device Voltage Low

Diagnostic Fault Information

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview

Circuit/System Description

The electronic brake control module (EBCM) monitors the battery voltage level available for system operation. A low voltage condition prevents the system from operating properly.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

This fault will be set if the battery voltage to EBCM is less than 10 volts for 200 msec.

Action Taken When the DTC Sets

The ABS indicator turns ON until the voltage returns to above 10 volts.

Conditions for Clearing the DTC

* The condition for the DTC is no longer present.
* 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

Connector End View Reference

Antilock Brake System Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

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

Scan Tool Reference

Scan Tool Data List for EBCM

Circuit/System Testing

1. Measure the voltage at the battery terminals.
2. With scan tool, read the battery voltage in the EBCM data list.
^ If less than 10 volt, test the ground circuit of the EBCM for high resistance. If the circuit test normal, test or replace the EBCM.

3. Go to Battery Inspection/Test and Charging System Test.

Repair Instructions

Perform the Diagnostic System Check - Vehicle After completing the diagnostic procedure. Initial Inspection and Diagnostic Overview

* Refer To Programing and Relearning Programming and Relearning

* Generator Replacement

Repair Verification

Diagnostic Repair Verification