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Circuit/System Testing

WARNING: This page is about a different car, the 2008 Saturn Outlook, 2008 GMC Acadia, and 2008 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the VES actuator.
  2. Test for greater than 1 Mega ohm between the ground control terminal 1 and ground.
    • If less than the specified range, test the ground control circuit for a short to ground. If the circuit tests normal, replace the EBCM.
  3. Ignition ON, with a scan tool command the actuator ON 10%, verify less than 50 ohms.
    • If greater than the specified range, test the ground control circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.
  4. Test for less than 2 volts between the voltage control terminal 2 and ground with the actuator command state at 0.
    • If greater than the specified range, test the voltage control circuit for a short to voltage. If the circuit tests normal, replace the EBCM.
    • If not the specified value, test the control circuit for a short to ground.
  5. If all circuits test normal, test or replace the VES actuator.
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