Signal Circuit Inspection

Check for Resistance of Wire 

1. IG KEY: OFF, Engine: OFF
2. Connect HO2S connector (B-25) and ECM connector.
3. Measure resistance between terminal 2 of the HO2S harness connector B-25 and C1 of the ECM harness connector B-01.
   1. Specification: Approx. 0Ω.
      Fig 1: Measuring Resistance Between Terminal 2 Of HO2S Harness Connector B-25 And C1 Of ECM Harness Connector B-01

      
4. Is the resistance near the specified value?

   YES

   1. Go to "HEATER CIRCUIT INSPECTION " procedure.

   NO

   1. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.