TEST OPTIONS
REASON FOR QUESTION
KNOWN INFO
Voltage Test or
STE/ICE-R Test #89
POSSIBLE PROBLEMS
WARNING
Read WARNING
on following page.
4.
Towing vehicle left stop/turn
light OK.
Circuit breaker CB43 OK.
Trailer electrical system OK.
Rear lights cable assembly OK.
Rear intervehicular 24 VDC
(12 pin) cable OK.
Faulty dashboard cable
assembly.
Faulty relay K30.
Is 12 VDC present at relay
K30 terminal 86 on PDP?
e64. TRAILER LEFT STOP/TURN LIGHT DOES NOT ILLUMINATE (CONT)
TM 9-2320-365-20-1
2-774 Change 1
If 12 VDC is not present,
wire 461B is faulty.
KNOWN INFO
TEST OPTIONS
Continuity Test or
STE/ICE-R Test #91
POSSIBLE PROBLEMS
5.
Towing vehicle left stop/turn
light OK.
Circuit breaker CB43 OK.
Trailer electrical system OK.
Rear lights cable assembly OK.
Rear intervehicular 24 VDC
(12 pin) cable OK.
Is continuity present from
relay K30 terminal 85 on
PDP to ground?
Faulty dashboard cable
assembly.
Faulty relay K30.
REASON FOR QUESTION
If continuity is not present,
wire 3047 is faulty.
YES
Replace relay K30
(para 7-9).
NO
Repair wire 3047 from K30 terminal
85 on PDP to terminal board TB2 position
50 (para 2-40) or replace WTEC II dashboard
cable assembly (para 7-10) or WTEC III
dashboard cable assembly ( para 7-11).
NO
Repair wire 461B from relay K30 terminal
86 on PDP to connector J19 socket 2
(para 2-40) or replace WTEC II dashboard
cable assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
YES
