H9 Check The UO2SPC Circuit For An Open In The Harness
NOTE:
Only the suspect UO2S needs to be diagnosed.
- Key in OFF position.
- Universal HO2S connector disconnected.
- PCM connector disconnected.
- Measure the resistance between:
( + ) Universal HO2S Connector, Harness Side ( - ) PCM Connector, Harness Side UO2SPC - Pin 1 UO2SPC - Pin E23 - Is the resistance less than 5 ohms?
- Yes: GO to H10 .
- No: REPAIR the open circuit. CLEAR the DTCs. REPEAT the self-test.