Many malfunctions in the electrical system are caused by poor harness(es) and terminal condition.

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 then go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Power Circuit Inspection" procedure.

Ignition "OFF"

Disconnect Steering Angle Sensor connector.

Ignition "ON" & Engine "OFF"

Measure voltage between power terminal of the steering angle 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 steering angle sensor and HECU, and then go to "Verification of vehicle Repair" procedure.

Ignition "OFF" & Engine "OFF".

Disconnect steering angle sensor connector.

Measure resistance between ground terminal of the steering angle sensor harness connector and chassis ground.

Is the measured value within specifications?

	▶ Go to "Signal Circuit Inspection" procedure.
	▶ Repair open or short in ground circuit between steering angle sensor and HECU and then, go to "Verification of vehicle Repair" procedure.

IG "OFF"

Disconnect Steering Angle Sensor connector and HECU connector.

Measure resistance between CAN-High terminal of Steering Angle Sensor harness connector and CAN-High terminal of HECU harness connector.

Measure resistance between CAN-Low terminal of Steering Angle Sensor harness connector and CAN-Low terminal of HECU harness connector.

Is the measured resistance within specifications?

	▶ Go to "Component inspection" procedure.
	▶ Repair open in the signal circuit between Steering Angle Sensor and HECU, Go to "Verification of Vehicle Repair" procedure.