Table 5. Electrical System Troubleshooting Procedures - continued

TM 9-2320-391-10

ELECTRICAL SYSTEM TROUBLESHOOTING - Continued 0069 00

ELECTRICAL SYSTEM Continued

Table 5. Electrical System Troubleshooting Procedures Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

45. LAMP TEST 24 VDC

2. Check to see if lamp

If lamp test 24 VDC does not

DOES NOT

test 24 VDC operates

operate, notify Field

OPERATE -

(WP 0016 00).

Maintenance.

Continued

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).

4. If service drive lights do not

illuminate, perform

Malfunction 3 (12 VDC

Circuits Do Not Operate (100

AMP Alternator)).

5. If service 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.

0069 00-54