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

Circuit breaker CB41

REASON FOR QUESTION

relay K28 terminal 87 on

Trailer electrical system OK.

If continuity is not present,

PDP to connector J51

Relay K28 OK.

wire 489T is faulty.

pin 9?

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Faulty rear lights cable

assembly.

Faulty rear intervehicular

24 VDC (12 pin) cable.

Repair wire 489T from relay K28

terminal 87 on PDP to connector J51

pin 9 (para 2-45) or replace WTEC II

YES

dashboard cable assembly (para 7-10)

or WTEC III dashboard cable

assembly ( para 7-11).

2-792

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