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 all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/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 switch "OFF"

Refer to "Shop Manual" and disconnect battery sensor connector.

Ignition switch "ON"

Measure the voltage between Pin No. 2 (Power) terminal of battery sensor harness connector and chassis ground.

Is the measured value within specification?

	▶ Go to "Signal Circuit Inspection" procedure.
	▶ Inspect and repair open or short in circuit, and then go to "Verification of Vehicle Repair" procedure.

Ignition switch "OFF"

Refer to "Shop Manual" and disconnect battery sensor connector.

Connect VMI to GDS and set up the Oscilloscope.(2 Channel):

Channel A (+) : Pin No. 1 (Signal) terminal (Battery Sensor Harness Connector)

Channel A (-) : Ground

Ignition switch "ON"

Fig.1) LIN communication signal waveform of battery sensor.

Is the measured value within specification?

	▶ Go to "Component Inspection" procedure.
	▶ Inspect and repair open or short in circuit, and then go to "Verification of Vehicle Repair" procedure.