ONE OR BOTH STOPLIGHTS DO NOT ILLUMINATE (CONT)

TM 9-2320-366-20-1

e61. ONE OR BOTH STOPLIGHTS DO NOT ILLUMINATE (CONT)

KNOWN INFO

TEST OPTIONS

17.

Continuity Test or

Blackout stoplights illuminate.

STE/ICE-R Test #91

Lamp OK.

Is continuity present from

REASON FOR QUESTION

Rear lights cable assembly

terminal board TB1 position

If continuity is not present,

OK.

27 to diode D1A terminal 1?

wire 22 is faulty.

Composite taillight assembly

OK.

Turn signal switch OK.

Diode D1B OK.

Diode D2A OK.

Main light switch OK.

Relay K10 OK.

POSSIBLE PROBLEMS

Faulty dashboard cable

Repair wire 22 from terminal board TB1 position

assembly.

27 to diode D1A terminal 1 (para 2-45) or replace

Faulty diode D1A.

YES

WTEC II dashboard cable assembly (para 7-10) or

WTEC III dashboard cable assembly (para 7-11).

Replace diode D1A (para 7-9).

Change 1