3.
Has a problem been found?
YES
a.
Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
a.
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 connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Has a problem been found?
YES
Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
Go to " Power Circuit Inspection " procedure.
IG "OFF".
Disconnect HO2S(S2) connector.
IG "ON" & ENG "OFF"
Measure voltage between terminal 3 of HO2S(S2) harness connector and chassis ground.
Specification : B+
Is the measured voltage within specification ?
YES
Go to "Control Circuit Inspection" procedure.
NO
Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedue.
IG "OFF".
Disconnect HO2S(S2) harness connector.
IG "ON" & ENG "OFF"
Measure voltage between terminal 4 of HO2S(S2) harness connector and chassis ground.
Specification : Approx. 3.5V
Is the measured voltage within specification ?
YES
Go to "Component Inspection" procedure.
NO
Repair or replace as necessary and then, go to "Verification of Vehicle Repair"procedure.
