TM 9-2350-256-20-1
0078 00
CORRECTIVE ACTION Continued
10. Reconnect switch panel to gage panel and miscellaneous switches wiring harness to main switch panel.
Disconnect main lighting and master relay wiring harness from main lighting switch. Place a jumper
wire from pin F to socket F. Place red lead of multimeter on pin M of wire 16 and black lead to ground.
Turn MASTER switch on, UNLOCK and place main lighting switch in SER. DRIVE position, and
auxiliary switch in any position other than PARK, and check for voltage. Turn MASTER and main
lighting switches OFF. If voltage is present, go to step 13. If voltage is not present, go to step 11.
11. Reconnect main lighting and master relay wiring harness to main lighting switch. Disconnect wire 16
of main lighting and master relay wiring harness at connector. Place red lead of multimeter on male
connector of wire 16 and black lead to ground. Turn MASTER switch on, UNLOCK and place main
lighting switch in SER. DRIVE position, and auxiliary switch in any position other than PARK, and
check for voltage. Turn MASTER and main lighting switches OFF. If voltage is present, repair/replace
wire 16 of main lighting and B.O. selector switch wiring harness (see WP 0218 00). If voltage is not
present, repair/replace wire 16 of main lighting and master relay wiring harness (see WP 0219 00).
0078 00-8
