Table 4. Electrical System Troubleshooting Procedures - Continued.

TM 9-2320-312-24-1

TROUBLESHOOTING PROCEDURES - CONTINUED

0006 00

Table 4. Electrical System Troubleshooting Procedures - Continued.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

LIGHT SYSTEMS - CONTINUED

Repair or replace damaged or

8. Trailer Lights Inoperative (24-Volt Trailer) -

7. Use multimeter to check

wires and connectors between

corroded wires and connectors

Continued.

components of 24-volt trailer

(WP 0120 00).

light circuit.

Reset circuit breaker.

9. Turn Signal Lights Inoperative.

1. Ensure "TURN LIGHTS"

25A circuit breaker is not

tripped.

2. Check turn signal light(s) for

Replace damaged light(s) (WP

damage.

0103 00).

3. Install known good turn

Replace failed flasher unit if turn

signal light flasher unit.

signals operate properly (WP

0100 00).

a. Repair

replace

4. Use multimeter to check

damaged or corroded

wires and connectors between

wires and connectors (WP

components of turn signal

0120 00).

circuit.

b. Replace turn signal lever

(WP 0100 00).

WINDSHIELD WASHER AND WIPER SYSTEM

1. Windshield Washer Inoperative.

1. Ensure "WIPERS" 15A

Reset circuit breaker.

circuit breaker is not tripped.

2. Check windshield washer

Refill

windshield

washer

fluid level in reservoir.

reservoir as needed.

Reconnect washer hose or

3. Check if washer hose from

windshield washer reservoir

replace damaged hose (WP 0059

to windshield is plugged,

00).

disconnected or crimped.

If voltage is present, replace

4. Using multimeter to check for

12Vdc at washer pump

washer pump (WP 0059 00).

harness connector with wiper/

washer switch in on position.

If switch is not operating

5. Using multimeter to check

wiper/washer control switch

properly in all positions, replace

operations.

switch (WP 0093 00).

2. Windshield Wiper Inoperative.

1. Ensure "WIPERS" 15A

Reset circuit breaker.

circuit breaker is not tripped.

0006 00-16