Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2009 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 76 (Engine Control System & Fuel System - 3.6L - DTC P0638 To DTC P2635) >> DTC P2232 or P2235 >> Circuit/System Testing

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 appropriate HO2S 2.
  2. Ignition ON, verify that the HO2S parameter is between 400-520 mV.
    • If greater than the specified range, test the signal circuit of the HO2S sensor for a short to the heater circuit. If the circuit/connections test normal, replace the ECM.
  3. If all circuits/connections test normal, replace the appropriate HO2S 2.
scientia non olet · About Mike's Workshop Manuals