Current Pump Circuit Inspection
- IG "OFF" & Disconnect HO2S (S1) connector.
- Measure the resistance between both ends of the HO2S (S1) Current Pump terminal harness.
Specification: Approx. 0Ω
- Is the measured resistance within specification?
YES
- Go to "Component Inspection " procedure.
NO
- Repair or replace as necessary and then, go to "Verification of Vehicle Repair " procedure.