4.
Measure voltage between termial 1 of APS harness connector and chassis ground.
a.
Specification : Approx. 5V
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 APS connector.
IG "ON" & ENG "OFF".
Measure voltage between termial 1 of APS harness connector and chassis ground.
Specification : Approx. 5V
Is the measured voltage within specification ?
YES
▶ Go to "Signal Circuit Inspection" procedure.
NO
▶ Repair or replace as necessary and then, go to ’Verification of Vehicle Repair" procedure.
Check short to ground in harness
IG "OFF".
Disconnect APS and PCM connector.
Measure resistance between terminal 3 of APS harness connector and chassis ground.
Measure resistance between terminal 3 and 5 of APS harness connector.
Measure resistance between terminal 3 and 6 of APS harness connector.
Specification : Infinite
Is the measured resistance within specification ?
YES
▶ Go to "Check open in harness" as follows.
NO
▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.
Check open in harness
IG "OFF".
Disconnect APS and PCM connector.
Measure resistance between terminal 3 of APS harness connector and terminal 49 of PCM harness connector.
Specification : Approx. below 1Ω
Is the measured resistance within specification ?
YES
▶ Go to "Component Inspection" procedure.
NO
▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.
