e48. ONE OR BOTH COMPOSITE TAILLIGHTS DO NOT ILLUMINATE (CONT)
KNOWN INFO
Is 12 VDC present at
relay K20 terminal 86
on PDP?
TEST OPTIONS
REASON FOR QUESTION
NO
WARNING
Read WARNING
on following page.
YES
POSSIBLE PROBLEMS
Voltage Test or
STE/ICE-R Test #89
Other service light illuminates.
Circuit breaker CB80 OK.
Rear lights cable
assembly OK.
Faulty dashboard cable
assembly.
Faulty relay K20.
Faulty main light switch.
This question eliminates
possible problems and
determines where
troubleshooting continues.
13.
Go to step 15 of this fault.
TM 9-2320-365-20-1
2-594.14 Change 1