KNOWN INFO
Blackout stoplights illuminate.
Main light switch OK.
Diode D1A OK.
Relay K10 OK.
Lamp OK.
POSSIBLE PROBLEMS
Faulty rear lights cable
assembly.
Faulty composite taillight
assembly.
Faulty turn signal switch.
Faulty dashboard cable
assembly.
Faulty diode D1B.
Faulty diode D2A.
TEST OPTIONS
REASON FOR QUESTION
Voltage Test or
STE/ICE-R Test #89
NO
YES
5.
Go to step 6 of this fault.
Is 12 VDC present at
connect P74 (LH) or
connector P61 (RH)?
If 12 VDC is present,
composite taillight assembly
is faulty.
WARNING
CAUTION
Read WARNING and
CAUTION on
following page.
e59. ONE OR BOTH STOPLIGHTS DO NOT ILLUMINATE (CONT)
Replace composite taillight
assembly (para 7-32).
TM 9-2320-365-20-1
2-714.2 Change 1
