TRAILER BLACKOUT STOPLIGHTS DO NOT ILLUMINATE (CONT)

TM 9-2320-366-20-1

e69. TRAILER BLACKOUT STOPLIGHTS DO NOT ILLUMINATE (CONT)

CAUTION

Read CAUTION

KNOWN INFO

TEST OPTIONS

on following page.

Continuity Test or

Towing vehicle blackout

STE/ICE-R Test #91

stoplights OK.

Is continuity present from

Circuit breaker CB39

REASON FOR QUESTION

relay K27 terminal 87 on

Trailer electrical system OK.

If continuity is not present,

PDP to connector J51

Relay K27 OK.

wire 23T is faulty.

pin 8?

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Faulty rear lights cable

assembly.

Faulty rear intervehicular

24 VDC (12 pin) cable.

Repair wire 23T from relay K27 terminal 87

on PDP to connector J51 pin 8 (para 2-45) or

YES

replace WTEC II dashboard cable assembly

(para 7-10) or WTEC III dashboard cable

assembly ( para 7-11).

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