3.
Has a problem been found?
YES
a.
Repair as necessary and go to "Verification of vehicle Repair" procedure
NO
a.
Go to "Power circuit inspection" procedure.
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.
Ignition "OFF".
Disconnect CA sensor connector.
Ignition "ON" & Engine "OFF".
Measure voltage between terminal "1" of sensor harness connector and chassis ground.
Specification : Approx. 5V
Is the measured voltage within specifications?
YES
Go to "Signal circuit inspection" procedure.
NO
Check for open or short in power harness. Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
Ignition "OFF"
Disconnect CAsensor connector
Ignition "ON" & Engine "OFF"
Measure voltage between terminal "3" of sensor harness connector and chassis ground
Specification : Approx. 5V
Is the measured voltage within specifications ?
YES
Go to "Ground circuit inspection" procedure.
NO
Check for open or short in signal harness. Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
Ignition "OFF"
Disconnect CA sensor connector
Measure resistance between terminal 1 of harness connector and chassis ground.
Measure resistance between terminal 1 and 2 of harness connector.
Specification : "A" - "B" = Below 200mV
Is the measured resistance within specifications ?
YES
Go to "Component inspection" procedure
NO
Check for open in ground harness. Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
