4.
Measure voltage between terminal 3 of the sensor harness connector and chassis ground.
Specification : Approx. B+
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 "Power Supply Circuit Inspection" procedure.
Ignition "OFF".
Disconnect ignition coil connector.
Ignition "ON" & Engine "OFF".
Measure voltage between terminal 3 of the sensor harness connector and chassis ground.
Specification : Approx. B+
Is voltage within the specification?
YES
▶ Go to "Control Circuit Inspection" procedure
NO
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Check for open in signal harness.
Ignition "OFF".
Measure resistance between terminals 2 of the coil harness connector and 3 of the ECM harness connector.
Specification : Approx. 0Ω
Is resistance within the specification?
YES
▶ Go to next step as below.
NO
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Check for short to ground in signal harness.
Measure resistance between terminal 2 of the coil harness connector and chassis ground.
Specification : Infinite
Is resistance within the specification?
YES
▶ Go to next step as below.
NO
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Check for short to battery in signal harness.
Disconnect ECM connector.
Ignition "ON" & Engine "OFF".
Measure voltage between terminal 2 of the coil harness connector and chassis ground.
Specification : Approx. 0V
Is voltage within the specification?
YES
▶ Go to next step as below.
NO
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
