TM-9-2350-261-20-1

CARRIER, M113A2, M577A2, M1064, M1068, M1059 AND M901A1

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL - VOLUME 1 OF 4

TM-9-2350-261-20-1 - Page 221 of 346

TM 9-2350-261-20-1

SERVICE HEADLIGHTS DO NOT WORK — Continued

0031 00

B4Y

1.

Turn MASTER SWITCH to OFF (see your -10).

2.

Install right headlight wiring harness circuit 17 (high beam)

or 18 (low beam) on service headlight.

3.

Repair front main wiring harness circuit 17 or 18 between

bulkhead and dimmer switch (WP 0312 00).

4.

Verify no faults found.

CY

1.

Measure resistance between dimmer switch jack (1) pins G

(2) and E (3) and between pins G (2) and F (4). Multimeter

should read 0 ohms once and infinity once.

2.

Click dimmer switch and measure resistance between dimmer

switch jack (1) pins G (2) and E (3) and between pins G (2) and F

(4). Multimeter should read infinity once and 0 ohms once.

3.

Is high beam selector switch operating properly?

CYN

1.

Replace dimmer switch

(WP 0285 00).

2.

Verify no faults found.

C2Y

1.

Repair front main wiring harness circuit 18 (low beam)

or circuit 17 (high beam) (WP 0312 00).

2.

Verify no faults found.

003100-4