3.
Measure resistance between terminals 1 of the OTS harness connector and chassis ground.
1)
Specification : Approx. 0Ω
Ignition "OFF"
Disconnect OTS connector
Measure resistance between terminals 1 of the OTS harness connector and chassis ground.
Specification : Approx. 0Ω
Is resistance within specification?
YES
▶ Go to next step as below
NO
▶ Repair open circuit and go to "Verification of Vehicle Repair" procedure
Check the signal circuit for short to battery
Disconnect ECM harness connector
Ignition "ON" & Engine "OFF""
Measure voltage between terminal 2 of the OTS harness connector and chassis ground.
Specification : Approx. 0V
Is voltage within specification?
YES
▶ Go to next step as below
NO
▶ Check for short to battery in signal circuit. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Check the signal circuit for open
Ignition "OFF"
Measure resistance between terminals 2 of the OTS harness connector and 40 of the ECM harness connector.
Specification : Approx. 0Ω
Is resistance within the specification?
YES
▶ Go to next step as below
NO
▶ Check for open in signal circuit. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Many malfunctions in the electrical system are caused by poor harness(es) 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 next step as below
