3.
Has a problem been found?
 | ▶ Repair as necessary and go to "Verification of vehicle Repair" procedure. |
 | ▶ Go to "Power 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 "Power Circuit Inspection" procedure. |
IG "OFF" & Disconnect HO2S(S2) connector.
IG "ON".
Measure voltage between Pin No.3(power) terminal of HO2S(S2) harness connector and chassis ground.
Specification : Approx 12V
Is the measured voltage within specification ?
| ▶ Go to "Control Circuit Inspection" procedure. |
| ▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedue. |
IG "OFF" & Disconnect HO2S(S2) connector.
IG "ON".
Measure voltage between Pin No.4(Control) terminal of HO2S(S2) harness connector and chassis ground.
Specification : Approx 3.3V
Is the measured voltage within specification ?
| ▶ Go to "Component Inspection" procedure. |
| ▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedue. |
