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 for short in harness
Ignition "OFF"
Disconnect FT sensor connector
Ignition "ON" & Engine "OFF"
Measure voltage between terminal 1 of the sensor harness connector and chassis ground
Specification : 5V
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 as necessary and go to "Verification of Vehicle Repair" procedure
Check for open in harness
Ignition "OFF"
Disconnect FT sensor connector
Measure resistance between terminal 1 of the sensor harness connector and terminal 9 of ECM harness connector.
Specification : Approx. below 1Ω
Is the measured resistance within specifications?
YES
▶ Go to "Component Inspection" procedure.
NO
▶ Check for open in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure
