Tests AB: The Strobe Lamps Are Inoperative

PINPOINT TEST AB: THE STROBE LAMPS ARE INOPERATIVE

AB1-AB2:

AB2-AB3:

AB3-AB4:

AB4-AB5:

AB6-AB8:

Normal Operation
The strobe control module is supplied ignition switched voltage through circuit 37 (YE). When the switches are actuated for the strobe lamps, voltage is routed to the strobe control module through circuits 23 (TN/LG) and 30 (BK/LG). Ground for the strobe control module is supplied through circuit 57 (BK). When the strobe control module is active, high voltage is provided to the strobe lamps on individual harnesses.

Possible Causes
- Fuse
- Circuit 23 (TN/LG) open
- Circuit 30 (BK/LG) open
- Circuit 37 (YE) open
- Circuit 57 (BK) open
- Circuit 188 (WH/BK) open
- Circuit 361 (RD) open
- Circuit 385 (WH/RD) open
- Circuit 556 (WH) open
- Circuit 1055 (WH/LG) open
- Strobe lamp circuits shorted together
- Strobe lamp
- Strobe control module