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Home >> Chevrolet >> 2006 >> Cutaway 6.0 U >> Repair and Diagnosis >> External Pages >> Different car >> Section 951 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P0565 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2007 GMC Savana Special, 2007 GMC Savana Camper Special, 2007 GMC Savana, 2007 Chevrolet RV Cutaway, and 2007 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine ON, cruise control switch ON, verify that the Cruise On/Off Switch parameter reads On.
    • If the scan tool parameter reads Off, test the cruise control on switch signal circuit for an open/high resistance. If the circuit tests normal, replace the turn signal/multifunction switch.
  2. Ignition OFF, disconnect the harness connector at the turn signal multifunction switch.
  3. Engine ON, verify that the Cruise Set/Coast Switch parameter reads Off.
    • If the scan tool parameter reads On, test the cruise control set/coast switch signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
  4. Engine ON, verify that the Cruise Resume/Accel. Switch parameter reads Off.
    • If the scan tool parameter reads On, test the cruise resume/accel switch signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
  5. If all circuits test normal, test or replace the turn signal/multifunction switch.
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