TM-5-4210-249-13-P-1

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 1 OF 4

TM-5-4210-249-13-P-1 - Page 398 of 1188

TM 5-4210-249-13&P-1

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DRAFT

0070

END OF TASK

TFFT04837

NOTE

Determine which crew cab air conditioner/heater control panel is installed on vehicle for

this Step. If model TDH 02 is installed on vehicle, ground terminal is terminal 8. If model

TLK 38S is installed on vehicle, ground terminal is terminal 1.

Step 52.

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

Disconnect crew cab air

conditioner controller wire harness white wire from control switch.

Check for continuity

across jumperwire from crew cab air conditioner/heater control panel, terminal to crew

cab air conditioner controller wire harness white wire from control switch connector.

If continuity is not present, repair or replace jumperwire

(TM 9-2320-325-14&P).

Step 53.

Disconnect crew cab air conditioner controller wire harness black wire from control

switch.

Check for continuity across black wire from crew cab air conditioner controller

wire harness connector to a known good ground.

a.

If continuity is present, replace crew cab air conditioner/heater control

panel control switch (WP 0202).

b.

If continuity is not present, replace air conditioner/heater controller wire

harness (WP 0433).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION