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P0567Cruise Control Resume Signal

The PCM has detected a fault in the cruise control Resume signal, such as the input reading stuck or invalid.

Definition

The PCM monitors the Resume switch input, which commands the system to return to the previously stored set speed (and on most vehicles doubles as accelerate). P0567 sets when this signal is stuck active, absent when other inputs indicate it should be present, or outside the valid resistance/voltage range for the switch ladder. A stuck-active Resume input is treated as a safety concern because it could command unintended acceleration, so the PCM disables cruise entirely while the code is present. Symptoms are Resume/Accel not working or the whole cruise system inoperative; the MIL generally does not illuminate.

Common causes

  • Worn or sticking Resume/Accel button on the steering wheel switch
  • Drifted resistance in the switch's resistor ladder
  • Chafed or shorted signal wiring through the column
  • Failing clockspring causing intermittent contact
  • Liquid or debris contamination inside the switch assembly
  • Faulty PCM input circuit (rare)

Common misdiagnoses

  • Cruise module or PCM replaced for a worn button
  • Brake switch replaced when the Resume circuit is at fault
  • Speed sensor replaced for resume-function complaints
  • Clockspring replaced when only the switch pad has failed

Troubleshooting steps

  1. 1.Watch the Resume input on a scan tool

    Press and release Resume while graphing the switch PID or voltage; the state should be crisp and never active with the button released.

  2. 2.Measure switch ladder resistance

    Compare the Resume button's resistance value to the other buttons and the service chart; values that overlap another button's range will confuse the PCM.

  3. 3.Wiggle-test the column wiring

    Rotate the steering wheel and flex the column harness while monitoring the input for glitches that implicate the clockspring.

  4. 4.Check the harness to the PCM

    Verify the signal circuit is not shorted to ground or voltage, which can mimic a constantly pressed button.

  5. 5.Confirm full function after repair

    Road test and verify Set, Resume, and Accel each work and that the code does not return after several engage/cancel cycles.

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