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 1146 of 1824

2-612.20

Change 1

TM 9-2320-366-20-1

e49. ONE OR BOTH COMPOSITE TAILLIGHTS DO NOT ILLUMINATE (CONT)

TEST OPTIONS

REASON FOR QUESTION

CAUTION

Read CAUTION

on following page.

KNOWN INFO

Continuity Test or

STE/ICE-R Test #91

Other service light illuminates.

Circuit breaker CB80 OK.

Rear lights cable

assembly OK.

POSSIBLE PROBLEMS

Faulty main light switch.

Faulty dashboard cable

assembly.

Faulty relay K20.

Is continuity present from

circuit breaker to CB80

socket 1 to relay K20

terminal 87 on PDP?

15.

NO

Repair wire 1914 from circuit breaker CB80

socket 1 on PDP to relay K20 terminal 87 on

PDP (para 2-45) or replace WTEC II dashboard

cable assembly (para 7-10) or WTEC III

dashboard cable assembly (para 7-11).

YES

If continuity is not present,

wire 1914 from relay K20

terminal 87 on PDP to circuit

breaker CB80 socket 1 on

PDP is faulty.