Test I: The Turn Signal Lamps Are Inoperative

PINPOINT TEST I: THE TURN SIGNAL LAMPS ARE INOPERATIVE

I1-I3:

I3-I5:

Normal Operation
The smart junction box (SJB) sends a voltage reference signal to the multifunction switch through circuit 1393 (LB/RD) (LH turn signal) and circuit 1392 (LG/OG) (RH turn signal). When the multifunction switch is placed in the LH or RH TURN position, the signal is routed to ground through the SJB.

Possible Causes
- Circuit 1392 (LG/OG) open or short to voltage
- Circuit 1393 (LB/RD) open or short to voltage
- Multifunction switch
- SJB