Test K

PINPOINT TEST K: THE CORNERING LAMP IS INOPERATIVE/ALWAYS ON

Test K1-K3:

Test K3-K4:

Test K5-K6:

Test K7-K8:

Normal Operation
The SJB sends out voltage reference signals through circuits 1393 (LB/RD) and 1392 (LG/OG) to the multifunction switch for the LH and RH turn signal inputs, respectively. The return signal is carried through circuit 2068 (BK/LB) (shared with the low/high beam return signal circuit) back to the SJB. When the multifunction switch is placed in the LH or RH turn positions, the voltage signal sent by the SJB is routed to circuit 2068 (BK/LB). As long as the SJB detects the multifunction switch in the LH or RH turn positions, the SJB sends voltage to the respective cornering lamp. The LH cornering lamp is supplied voltage from circuit 1344 (VT/LB) and the RH cornering lamp is supplied voltage from circuit 1343 (PK/OG).Ground for the cornering lamps is supplied through circuit 1205 (BK) from the BEC.

Possible Causes
- circuit 1205 (BK) open
- circuit 1343 (PK/OG) open, short to power or short to ground
- circuit 1344 (VT/LB) open, short to power or short to ground
- BEC
- SJB