TRAILER MARKER/TAILLIGHTS DO NOT ILLUMINATE (CONT)

TM 9-2320-366-20-1

e65. TRAILER MARKER/TAILLIGHTS DO NOT ILLUMINATE (CONT)

CAUTION

Read CAUTION

KNOWN INFO

TEST OPTIONS

on following page.

Continuity Test or

Towing vehicle marker/taillights

STE/ICE-R Test #91

OK.

Is continuity present from

REASON FOR QUESTION

Circuit breaker CB41 OK.

connector P51 socket 9

Trailer electrical system OK.

If continuity is not present,

to connector P53R

Dashboard cable assembly OK.

wire 489T is faulty. If

pin 2?

Relay K28 OK.

continuity is present,

intervehicular 24 VDC (12 pin)

POSSIBLE PROBLEMS

cable is faulty.

Faulty rear lights cable

assembly.

Faulty rear intervehicular

24 VDC (12 pin) cable.

Repair wire 489T from connector P51socket 9

to connector P53R pin 2 (para 2-45) or replace

M1083/M1084/M1085/M1090/M1090/M1092/

YES

M1093/M1094 rear lights cable assembly

(para 7-84) or M1086/M1088/M1089 rear lights

cable assembly (para 7-104).

Replace intervehicular

24 VDC cable (para 7-129).

2-794

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