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 1240 of 1824

TEST OPTIONS

REASON FOR QUESTION

KNOWN INFO

Continuity Test or

STE/ICE-R Test #91

9.

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Faulty rear lights cable

assembly.

Faulty REVERSE

WARNING relay in WTEC

II VIM.

Faulty WTEC II

transmission ECU

pushbutton shift selector.

If continuity is not present,

wire 490 in WTEC II

dashboard cable assembly

is faulty.

e55. BACKUP LIGHT DOES NOT ILLUMINATE (CONT)

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 II transmission controls.

WTEC II cab transmission

harness OK.

CAUTION

Read CAUTION

on following page.

Is continuity present from

connector PX33 socket A1

to connector J51 pin 2?

TM 9-2320-366-20-1

2-686

Change 1

NO

Repair wire 490 from connector

PX33 socket A1 to connector J51

pin 2 (para 2-45) or replace WTEC II

dashboard cable assembly (para 7-10).

YES