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Home >> Chevrolet >> 2007 >> Uplander Base, 3.9 1 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Information and Procedures >> DTC P0567 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition ON, verify that the Cruise Resume/Accel. Switch parameter reads Active or Invalid.
    • If the parameter reads Inactive, go to Diagnostic Aids.
  2. Ignition OFF, disconnect the harness connector at the cruise control switch.
  3. Ignition ON, cruise control switch ON, observe the scan tool Cruise Resume/Accel. Switch parameter.
    • If the scan tool parameter reads Inactive, replace the cruise control switch assembly.
    • If the scan tool parameter reads Active or Invalid, test the cruise control switch signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
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