3.
Has a problem been found?
 | ▶ Repair as necessary and go to "Verification of vehicle Repair" procedure. |
 | ▶ Go to "Signal Circuit Inspection" procedure. |
Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
Has a problem been found?
| ▶ Repair as necessary and go to "Verification of vehicle Repair" procedure. |
| ▶ Go to "Signal Circuit Inspection" procedure. |
IG "OFF" and disconnect HO2S(S1) connector.
IG "ON".
Measure voltage between Pin No.1 (signal) terminal of HO2S(S1) harness connector and chassis ground.
Specification : Approx 0.45V
Is the measured voltage within specification?
| ▶ Go to "Ground Circuit Inspection" procedure. |
| ▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedue. |
IG "OFF" and disconnect HO2S(S1) connector.
Disconnect PCM connector.
Measure resistance between Pin No.2 (ground) terminal of HO2S(S1) harness connector and Pin No.86 (ground) terminal of PCM.
Specification : Below 2Ω
Is the measured value within specification?
| ▶ Go to "Component Inspection" procedure. |
| ▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedue. |
