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 1242 of 1824

TEST OPTIONS

REASON FOR QUESTION

KNOWN INFO

Continuity Test or

STE/ICE-R Test #91

10.

POSSIBLE PROBLEMS

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 rear lights

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.

WTEC II dashboard cable

assembly OK.

CAUTION

Read CAUTION

on following page.

Is continuity present from

connector P51 socket 2 to

connector P87?

TM 9-2320-366-20-1

2-688

Change 1

NO

Repair wire 490 from connector

P51 socket 2 to connector P87

(para 2-45) or replace rear lights cable

assembly (para 7-84 or 7-104).

YES