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?

	▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Left Head lamp High Circuit Inspection" procedure.

IG "OFF", disconnect battery (-) terminal.

Disconnect SJB, Left Head lamp High connector.

Measure resistance between the Left Head lamp High terminal of SJB harness connector and chassis ground.

Is the measured resistance within specification?

	▶ Substitute with a known - good SJB and check for proper operation. If the problem is corrected, replace the SJB and go to "Verification of Vehicle Repair" procedure.
	▶ Repair short to ground in circuit of Left Head lamp High, and go to "Verification of Vehicle Repair" procedure.