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 723 of 1452

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

0178-5

DRAFT

0178

TFFT03980

Step 5.

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

Disconnect main wire

harness driver side body wire harness connector.

With a test lead set, check for

continuity across main wire harness wire 2640 (black) from main wire harness driver

side body wire harness connector, terminal 10 to a known good ground.

If there is no continuity, repair wire 2640 in main wire harness if

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

harness (WP 0455).

TFFT03981

Step 6.

While an assistant pushes rear step buzzer push button (WP 0004), with a test lead set,

check for continuity across driver side body wire harness wire 1614 (brown) and wire

2640 (black) from main wire harness driver side body wire harness connector, terminal

19 to terminal 10.

If there is continuity, repair wire 1614 in main wire harness if

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

harness (WP 0455).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION