Symptom Chart

Condition	Possible Sources	Action
No communication with the smart junction box (SJB)	Fuse Wiring, terminals or connectors SJB	REFER to MODULE COMMUNICATIONS NETWORK article.
The autolamps are inoperative	Light sensor SJB	Go to Pinpoint Test F .
The autolamps are on continuously	Wiring, terminals or connectors Light sensor Headlamp switch Windshield wiper motor Heating ventilation air conditioning (HVAC) system SJB	Go to Pinpoint Test G .