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 voltage of TPS
Ignition "OFF"
Disconnect TP sensor connector.
Measure voltage between terminal 3 of TP sensor harness connector and chassis ground.
Specification : Approx. 0V
Is the measured voltage within specifications?
YES
▶ Go to " Check for open in harness " as below.
NO
▶ Check for short to battery in harness.
▶ Repair or replace as necessary. And then, go to " Verification of Vehicle Repair" procedure.
Check for open in harness
Ignition "OFF"
Disconnect TP sensor connector.
Measure resistance between terminal 3 of TP sensor harness connector and terminal 8/C21-C of PCM harness connector.
Specification : Approx.below 1Ω
Is the measured resistance within specifications?
YES
▶ Go to " Ground Circuit Inspection " procedure.
NO
▶ Check open in harenss between TPS connector and PCM connector.
▶ Repair or replace as necessary and then, go to " Verification of Vehicle Repair " procedure.
Check for open in harness
Ignition "OFF"
Disconnect TP sensor.
Measure resistance between terminal 1 of TP sensor harness connector and chassis ground.
Specification : Approx. below 1Ω
Is the measured resistance within specifications?
YES
▶ Go to " Component Inspection " procedure.
NO
▶ Check open in harenss between TPS connector and PCM connector.
▶ Repair or replace as necessary and then, go to " Verification of Vehicle Repair " procedure.
