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 "Signal Circuit Inspection " procedure.
■ Check short to battery in harness
IG "OFF" and disconnect APS connector and PCM connector.
Measure resistance between APS2 signal and APS1 power terminals of APS harness connector.
Measure resistance between APS2 signal and APS2 power terminals of APS harness connector.
Specification : Infinite
Is the measured reisistance within specification ?
YES
Go to "Ground Circuit Inpsection" procedure.
NO
Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.
■ Check open in harness
IG "OFF" and disconnect APS connector.
IG "ON" and ENG "OFF"
Measure voltage between APS2 power terminal of APS harness connector and chassis ground.(Measurement "A")
Measure voltage between APS2 power and APS2 ground terminals of APS harness connector.(Measurement "B")
Specification : Voltage difference between measurement "A" and "B" is below 200mV.
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.