TM 9-2320-392-10-2
ELECTRICAL SYSTEM TROUBLESHOOTING - Continued 0080 00
ELECTRICAL SYSTEM Continued
Table 3. Electrical System Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
46. LAMP TEST
1. Do service drive
1. Position main light switch to
GROUND DOES
lights illuminate?
SER DRIVE (WP 0004 00).
NOT OPERATE
(Vehicle S/N
11,438 to 99,999)
2. Check to see if service drive
lights illuminate.
3. Position main light switch to
OFF (WP 0004 00).
2. If service drive lights do not
illuminate, perform Malfunction
3 (12 VDC Circuits Do Not
Operate (100 AMP
Alternator)).
3. If sevice drive lights illuminate,
go to test 2 of this malfunction.
2. Do stoplights
1. Position master power switch
illuminate?
to on (WP 0004 00).
NOTE
Lamp test ground and stoplights operate on same circuit.
2. Position main light switch to
STOPLIGHT (WP 0004 00).
3. Depress brake pedal.
4. Check to see if stoplights
illuminate.
5. Release brake pedal.
0080 00-57
