MAIN WINCH LH OR RH SPEED SWITCH DOES NOT OPERATE FROM WRECKER CONTROL PANEL (cont)

TM 9-2320-366-20-2

e139. MAIN WINCH LH OR RH SPEED SWITCH DOES NOT OPERATE FROM WRECKER

CONTROL PANEL (CONT)

KNOWN INFO

TEST OPTIONS

Continuity Test or

LH and RH winches operate

STE/ICE-R Test #91

from wrecker control panel.

Is continuity present

REASON FOR QUESTION

Circuit breaker CB50 OK.

between terminal blocks

STATION SELECTOR switch to

If continuity is not present,

TBC(1), TBC(2), TBC(3),

WRECKER CONTROL PANEL.

jumper wire is faulty.

TBC(4), and TBC(5).

MODE SELECTOR SWITCH to

NORMAL.

POSSIBLE PROBLEMS

Faulty STATION SELECTOR

switch.

Faulty M1089 control panel

wiring harness.

Faulty M1089 control panel

Replace jumper wire between terminal

power cable assembly.

YES

blocks that continuity is not present

Faulty M1089 rear lights cable

(para 7-33).

assembly.

Faulty auxiliary panel cable

assembly.

Faulty dashboard cable

assembly.

Faulty jumper wire.

2-1450.12

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