Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

Allow the engine to reach operating temperature. With the engine running, observe the HO2S Heater parameter with a scan tool. The value should vary from below 2 amp to above 1 amp.
With the engine running at operating temperature, observe the HO2S Heater parameter with a scan tool and manipulate the related wiring and connectors.
- If manipulation does affect the parameter then repair the harness or connector.