Ground Circuit Inspection
- Ignition "OFF"
- Disconnect HO2S and ECM connectors.
- Measure resistance between terminal 2 of the HO2S harness connector and 21 of the ECM harness connector.
Specification: Approx. 0Ω
- Is resistance within the specification?
YES:
- Go to "SIGNAL CIRCUIT INSPECTION " procedure.
NO:
- Repair open in the ground circuit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.