TM-5-4210-249-13-P-2

TACTICAL FIRE FIGHTING TRUCK (TFF) MODEL M1142

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL WITH REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT REPAIR PARTS AND SPECIAL TOOLS); PART 2 OF 4

TM-5-4210-249-13-P-2 - Page 451 of 1452

TM 5-4210-249-13&P-2

0158-15

DRAFT

0158

Step 26.

Turn battery disconnect switch to OFF (WP 0007).

Check for continuity across

wire 2740 from driver side relay to a known good ground.

a.

If continuity is present, replace driver extendable light relay (WP 0373).

b.

If continuity is not present, repair wire 2740 in rear body wire harness if

repairable (TM 9-2320-325-14&P), or replace rear body wire

harness (WP 0461).

TFFT04555

WARNING

ICON 3

Remove rings, wristwatches, neck chains, and any other jewelry before working

around vehicle.

Jewelry can catch on equipment and cause serious injury.

Jewelry

and tools may short across electrical circuits and cause damage to equipment, or

severe burns or electrical shock to personnel.

Step 27.

Turn battery disconnect switch to OFF position (WP 0007).

Remove cab instrument

panel C (WP 0311).

Disconnect cab instrument panel wire harness driver flood switch

wire harness connector from DRIVER FLOOD switch.

Disconnect wire 1146 (violet)

from driver side extendable floodlight relay (WP 0373).

Install jumperwire between wire

1146 (violet) and a known good ground.

With a test lead set, check for continuity across

wire 1146 (violet) from driver flood switch wire harness connector, terminal 5 to a known

good ground.

If continuity is present, go to Step 31.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION