TRAILER BLACKOUT MARKER LIGHTS DO NOT ILLUMINATE (CONT)

TM 9-2320-366-20-1

e68. TRAILER BLACKOUT MARKER LIGHTS DO NOT ILLUMINATE (CONT)

CAUTION

Read CAUTION

KNOWN INFO

TEST OPTIONS

on following page.

Continuity Test or

Towing vehicle blackout marker

STE/ICE-R Test #91

lights OK.

Is continuity present from

Circuit breaker CB42

REASON FOR QUESTION

relay K29 terminal 87 on

Trailer electrical system OK.

If continuity is not present,

PDP to connector J51

Relay K29 OK.

wire 484T is faulty.

pin 10?

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Faulty rear lights cable

assembly.

Faulty rear intervehicular

24 VDC (12 pin) cable.

Repair wire 484T from relay K29 terminal 87

on PDP to connector J51 pin 10 (para 2-45) or

YES

replace WTEC II dashboard cable assembly

(para 7-10) or WTEC III dashboard cable

assembly ( para 7-11).

2-822

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