e70. INTERVEHICLE STOPLIGHTS DO NOT ILLUMINATE (CONT)
TM 9-2320-365-20-1
2-820 Change 1
WARNING
3.
CAUTION
Read WARNING and
CAUTION on
following page.
KNOWN INFO
TEST OPTIONS
Voltage Test or
STE/ICE-R Test #89
REASON FOR QUESTION
Replace rear intervehicular 12 VDC
(7 pin) cable (para 7-78).
Towing vehicle stoplights
illuminate.
Towed vehicle stoplights OK.
Dashboard cable assembly OK.
POSSIBLE PROBLEMS
Faulty rear lights cable
assembly.
Faulty rear intervehicular
12 VDC (7 pin) cable.
Is 12 VDC present at
connector P52R pin 6?
If 12 VDC is not present, wire
22C is faulty. If 12 VDC is
present, rear intervehicular
12 VDC (7 pin) cable is faulty.
NO
Repair wire 22C from connector P51
socket 13 to connector P52R pin 6
(para 2-40) or replace rear lights cable
assembly (para 7-75).
YES
