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 ?

	▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure
	▶ Go to "Power Circuit Inspection" procedure.

IG "OFF".

Disconnect the YAW Sensor connector.

IG "ON".

Measure voltage between power supply terminal of the YAW Sensor harness connector and chassis ground.

Is the measured value within specifications ?

	▶ Go to "Ground Circuit Inspection" procedure.
	▶ Repair open or short in power circuit between battery and YAW Sensor harness connector. Check for open or blown fuse referring to "Circuit Diagram".

IG "OFF".

Disconnect the YAW Sensor connector.

Measure resistance between ground terminal of the YAW Sensor harness connector and chassis ground.

Is the measured value within specifications ?

	▶ Go to "Signal Circuit Inspection" procedure.
	▶ Repair open between ground teminal of the YAW Sensor harness connector and chassis ground.

IG "OFF".

Disconnet the HECU harness connector and YAW Sensor harness connector.

Measure resistance between CAN HIGH(LOW) terminal of the HECU harness connector and CAN HIGH(LOW) terminal of the YAW Sensor harness connector.

Is the measured value within specifications ?

	▶ Go to "Component Inspection" procedure.
	▶ Repair open in CAN BUS line between HECU harness connector and YAW Sensor harness connector and then go to "Verification of Vehicle Repair" procedure.