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 turn signal lamps are inoperative	Wiring, terminals or connectors Multifunction switch SJB	Go to Pinpoint Test K .
The turn signal lamps are always on	Wiring, terminals or connectors Multifunction switch SJB	Go to Pinpoint Test L .
One turn signal/hazard lamp is inoperative/always on	Wiring, terminals or connectors Bulb holder Rear lamp jumper harness SJB	Go to Pinpoint Test M .
The hazard lamps are inoperative/always on	Wiring, terminals or connectors Hazard flasher switch SJB	Go to Pinpoint Test N .