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Test K: The Turn Signal Lamps Are Inoperative

PINPOINT TEST K: THE TURN SIGNAL LAMPS ARE INOPERATIVE


K1-K3:






K3-K4:






Normal Operation
Under normal operation, when RH or LH turn is selected, the multifunction switch sends a ground signal to the smart junction box (SJB) through (LH) circuit 1393 (LB/RD) and (RH) circuit 1392 (LG/OG). The multifunction switch is grounded by the SJB through circuit 1396 (VT/WH).

Possible Causes
- An open in circuit 1396 (VT/WH), 1393 (LB/RD) or 1392 (LG/OG)
- Multifunction switch
- Smart junction box (SJB)