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.
Check power to PCSV
Ignition "OFF"
Disconnect PCSV connector.
Ignition " ON " & Engine "OFF"
Measure voltage between terminal "2" of PCSV harness connector and chassis ground.
Specification : B+
Is the measured voltage within specifications?
YES
▶ Go to " Control Circuit Inspection" procedure.
NO
▶ Check open or short to ground in harenss between control relay and PCSV.
▶ Repair or replace as necessary and then, go to " Verification of Vehicle Repair" procedure.
Check for open in harness
Ignition "OFF"
Disconnect PCSV and PCM connector
Measure resistance between terminal "1" of PCSV harness connector and terminal "34" of PCM harness connector.
Specification : Approx. below 1Ω
Is the measured resistance within specifications?
YES
▶ Go to " Check for Short to Ground " procedure.
NO
▶ Repair or replace as necessary and then, go to " Verification of Vehicle Repair" procedure.
Check for short to ground in harness.
Ignition "OFF"
Disconnect PCSV connector
Measure resistance between terminal "1" of PCSV harness connector and chassis ground.
Specification : Infinite
Is the measured resistance within specifications?
YES
▶ Go to " Component Inspection " procedure.
NO
▶ Repair or replace as necessary and then, go to " Verification of Vehicle Repair" procedure.
