Table 6. Electrical System Troubleshooting Procedures - Continued.

TM 5-2410-237-23

TROUBLESHOOTING PROCEDURES - CONTINUED

0006 00

Table 6. Electrical System Troubleshooting Procedures - Continued.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

20. Defrosters Will Not Operate or Will Not

b. Set

multimeter

appropriate ohm (Ω)

Operate in High Speed or Low Speed -

Continued.

range (WP 0241 00).

c. Connect meter positive

lead to center switch

terminal (switch side).

d. Connect meter negative

lead to either of the other

two terminals (switch

side).

e. Toggle switch between all

three positions. Observe

meter reading.

f. Repeat steps c through e

1. If continuity is indicated in

for remaining terminal.

HIGH and LOW, but not in

OFF position, repair defroster

circuitry (WP 0242 00).

2. If continuity is not indicated

as stated above, replace

defroster switch (WP 0195

00).

NOTE

21. Windshield Wiper Will Not Operate or Will

Not Operate in High Speed or Low Speed

The following procedure is for both front and rear wind-

Position.

shield wiper circuits.

Test wiper motor circuit

voltage.

a. Place battery disconnect

switch in OFF position.

b. Check for blown wiper

1. Replace blown fuse with a

circuit fuse.

fuse of the same rating (WP

0092 00).

2. If fuse is not blown, reinstall

and go to step c.

c. Disconnect wiper motor

wire connectors.

d. Set

multimeter

appropriate voltage range.

0006 00-81

Change 1