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 " Control Circuit Inspection " procedure.
Check voltage
IG "OFF".
Disconnect ETS motor & TPS connector.
IG "ON" and ENG "OFF"
Measure the voltage between terminal 2,3 of ETS motor & TPS harness connector and chassis ground.
Specification : Approx. 12V
Is the measured voltage within specification?
YES
▶ Go to "Component inspection" procedure.
NO
▶ Go to "Check open in harness" as follows.
Open in control circuit inspection
IG "OFF"
Disconnect ETS motor & TPS connector and PCM connector.
Measure the resistance between terminal 2 of ETS motor & TPS harness connector and terminal 2 of PCM harness connector.
Measure the resistance between terminal 3 of ETS motor & TPS harness connector and terminal 1 of PCM harness connector.
Specification : Approx. below 1Ω
Is the measured resistance within specification ?
YES
▶ Go to "Component inspection" procedure.
NO
▶ Repair Open in motor harness and go to "Verification of Vehicle Repair" procedure.
