LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2009 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 34 (Power Steering System) >> Diagnostic Information and Procedures >> DTC C0450 >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Testing

WARNING: This page is about a different car, the 2010 Saturn Outlook, 2010 GMC Acadia, 2010 Chevrolet Traverse, and 2010 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. Ignition ON, Command the VES actuator to 100% with a scan tool.
  3. Test for B+ between the high control circuit terminal 2 and ground.
    • If not the specified value, test the high control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.
  4. Connect a DMM, set on the diode setting, between the low control circuit terminal 1 and ground.
  5. Command the VES actuator to 0% with a scan tool. The DMM reading should be greater than 2.5 volts or display O.L.
    • If less than the specified value, test the low control circuit for a short to voltage or a short to ground. If the circuit tests normal, replace the EBCM.
  6. Command the VES actuator to 100% with a scan tool. The DMM reading should be less than 1 volt.
    • If greater than the specified range, test the low control circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.
  7. If all circuits test normal, test or replace the VES actuator.
scientia non olet · About LEMON Manuals