TM-9-2320-366-20-1

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 1 OF 5

FEBRUARY 2006

CHANGE 3

TM-9-2320-366-20-1 - Page 1252 of 1824

TEST OPTIONS

REASON FOR QUESTION

NO

YES

KNOWN INFO

Continuity Test or

STE/ICE-R Test #91

POSSIBLE PROBLEMS

Faulty WTEC III relay K25.

Faulty WTEC III dashboard

cable assembly.

Faulty rear lights cable

assembly.

Faulty WTEC III

transmission ECU.

15.

If continuity is not present,

wire 113 is faulty.

e55. BACKUP LIGHT DOES NOT ILLUMINATE (CONT)

CAUTION

Read CAUTION

on following page.

Is continuity present from

WTEC III relay K25

terminal 85 to connector

P115 socket 4?

Repair wire 113 from WTEC III relay

K25 terminal 85 to connector P115 socket 4

(para 2-45) or replace WTEC III dashboard

cable assembly (para 7-11).

TM 9-2320-366-20-1

2-698

Change 1

Circuit breaker CB70 OK.

Circuit breaker CB73 OK.

Both turn signals illuminate.

Engine starts.

Transmission reverse (R)

range OK.

Backup light lamps OK.

Backup light assembly OK.

WTEC III transmission controls.