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DTC C0280

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 C0280 00: Stability System Active Too Long

Circuit/System Description

The solenoid valves are integral parts of the brake pressure modulator valve assembly. The brake pressure modulator valve assembly contains an isolation solenoid valve and a dump solenoid valve for each wheel and a traction control/stability control supply solenoid valve and isolation solenoid valve for each brake circuit. The solenoid valves are not engaged during normal system operation. When the ABS, traction control or stability control operation is required the Electronic Brake Control Module turns the required solenoid valves ON.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

Stability control is active for more than 15 s.

Action Taken When the DTC Sets

    • The Electronic Brake Control Module disables the stability control for the duration of the ignition cycle.
    • The traction control/stability control-active indicator turns ON.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Diagnostic Aids

DTC can set because of extended operation of ABS, traction control or stability control.

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

Note: Since most occurrences of this DTC are caused by excessive ABS or traction usage, review with the customer the conditions under which the DTC set.

  1. Ignition ON.
  2. Verify that DTC C0186, C0196, C019B, or C0710 is not set.
  3. [ARW-LISTFAIL]
  4. If any listed DTC is present

    Refer to Diagnostic Trouble Code (DTC) List - Vehicle to diagnose that DTC prior to this diagnostic.

  5. If DTC C0280 00 is set

    Refer to Circuit/System Testing.

  6. [/ARW-LISTFAIL][ARW-LISTPASS]
  7. If DTC C0280 00 does not set

  8. [/ARW-LISTPASS]
  9. All OK.

Circuit/System Testing

  1. Ignition ON.
  2. If DTC C0280 00 is set, replace the K17 Electronic Brake Control Module.
  3. Verify that the DTC does not set.
  4. [ARW-LISTFAIL]
  5. If the DTC C0280 00 sets

    Replace the brake pressure modulator valve assembly.

  6. [/ARW-LISTFAIL][ARW-LISTPASS]
  7. If the DTC C0280 00 does not set

  8. [/ARW-LISTPASS]
  9. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

    •  Brake Pressure Modulator Valve Replacement
    • Control Module References for electronic brake control module replacement, programming and setup
   


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