Test L: The Turn Signal Lamps Are Inoperative

PINPOINT TEST L: THE TURN SIGNAL LAMPS ARE INOPERATIVE

Normal Operation
The smart junction box (SJB) sends reference signals to the multifunction switch through circuits CLS39 (VT/WH) (LH turn input) and CLS41 (GY/YE) (RH turn input). When the multifunction switch is switched to the LH or RH TURN positions, the voltage signal is routed to ground. When the SJB detects the multifunction switch in the LH or RH TURN position, the SJB provides on/off voltage to the appropriate turn lamps.

All the turn lamps are individually wired to the SJB. The timed on/off cycle is determined by the SJB and is set to flash approximately 80 times per minute if both, front and rear, turn lamps operate correctly. If an individual turn signal lamp is inoperative, the SJB flashes the remaining turn lamp approximately 160 times per minute.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Multifunction switch
- SJB

L1-L2:

L2-L4: