Many malfunctions in the electrical system are caused by poor connection. 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 "Charging System Inspection" procedure.

Engine "ON", headight and heatwire "ON".

Measure voltage between the battery terminal (+) and (-) maintaining ENG. RPM 2,500RPM (idle) over 2 minutes.

Fig.1) GDS Multimeter voltage check

Is the measured voltage within specifications?

	▶ Go to "Power Circuit Inspection" procedure.
	▶ Carefully re-do this troubleshooting guide steps. ▶ If problem still occurs, replace alternator and then go to "Verification of Vechicle Repair" procedure.

Ignition "OFF".

Disconnect EPS ECU connector.

Engine "ON", headight and heatwire "ON".

Measure voltage between Pin No.1 (Memory Power) terminal of the EPS ECU harness connector and chassis ground.

Fig.1) GDS Multimeter voltage check

Is the measured voltage within specifications?

	▶ Go to "Ground Circuit Inspection" procedure.
	▶ Check for open or blown fuse referring to "Circuit Diagram". Repair open or short in power circuit between battery and EPS ECU harness connector and then go to "Verification of Vehicle Repair" procedure.

Ignition "OFF".

Disconnect EPS ECU connector.

Measure resistance between Pin No. 2(Ground) terminal of the EPS ECU harness connector and chassis ground.

Fig.1) GDS Multimeter resistance check

Is the measured resistance within specifications?

	▶ Carefully re-do this troubleshooting guide steps. ▶ If problem still occurs, replace EPS ECU and then go to "Verification of Vechicle Repair" procedure.
	▶ Check for open or contact resistance in ground harness. ▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.