Test K: The Turn Signal Lamps Are Inoperative

PINPOINT TEST K: THE TURN SIGNAL LAMPS ARE INOPERATIVE

K1:

K2-K4:

Normal Operation
The smart junction box (SJB) sends reference signals to the multifunction switch through circuits CLS20 (BN/BU) (LH turn input) and CLS24 (BN/WH) (RH turn input). When the multifunction switch is placed in 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 voltage to the appropriate turn lamps.

Possible Causes
- Circuit CLS20 (BN/BU) open
- Circuit CLS24 (BN/WH) open
- Multifunction switch
- SJB