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DTC C0898

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 Descriptors

DTC C0898 00: Control Module Power and Ground Circuits Malfunction

DTC C0898 03: Control Module Power and Ground Circuits Low Voltage

Circuit/System Description

The electronic brake control module monitors two different blocks of memory to determine its capability to control the system shutdown process.

Conditions for Running the DTC

Vehicle ON or Vehicle in Service Mode.

Conditions for Setting the DTC
    • Keep alive voltage regulator not functional.
    • Processor loses complete power (Ignition and Battery).
    • Battery voltage is under 9 V and the vehicle is not moving.

Action Taken When the DTC Sets
    • The electronic brake control module disables the antilock brake system/traction control system/vehicle stability enhancement system for the duration of the drive cycle.
    • A driver information centre 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 electronic brake control module 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

    •  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 Verification

Check to ensure battery shunt is not opened.

Circuit/System Testing
  1. Vehicle OFF and all vehicle systems OFF, disconnect the harness connector at the K17 Electronic Brake Control Module. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 10 Ω between the ground circuit terminals listed below and ground:
    3. • Terminal 13
    • Terminal 38
    ⇒If 10 Ω or greater
    2.1. Vehicle OFF.
    2.2. Test for less than 2 Ω in the ground circuit end to end.
    ⇒     If 2 Ω or greater, repair the open/high resistance in the circuit.
    ⇒     If less than 2 Ω, repair the open/high resistance in the ground connection.
    ⇓   If less than 10 Ω
  3. Vehicle in Service Mode.
  4. Verify that a test lamp illuminates between the B+ circuit terminals listed below and ground.
    5. • Terminal 1
    • Terminal 25
    ⇒If the test lamp does not illuminate and the circuit fuse is good
    4.1. Vehicle OFF.
    4.2. Test for less than 2 Ω in the B+ circuit end to end.
    ⇒     If 2 Ω or greater, repair the open/high resistance or the short to ground in the circuit.
    ⇒     If less than 2 Ω, verify the fuse is not open and there is voltage at the fuse.
    ⇓     If the test lamp illuminates
  5. Vehicle in Service Mode.
  6. Verify that a test lamp illuminates between the ignition circuit terminal 14 and ground.
    7. ⇒If the test lamp does not illuminate and the circuit fuse is good
    6.1. Vehicle OFF.
    6.2. Test for less than 2 Ω in the ignition circuit end to end.
    ⇒     If 2 Ω or greater, repair the open/high resistance or the short to ground in the circuit.
    ⇒     If less than 2 Ω, verify the fuse is not open and there is voltage at the fuse.
    ⇓     If the test lamp illuminates
  7. Replace the K17 Electronic Brake Control Module.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for electronic brake control module replacement, programming and setup

   


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