TEST OPTIONS
REASON FOR QUESTION
NO
YES
Voltage Test or
STE/ICE-R Test #89
KNOWN INFO
POSSIBLE PROBLEMS
Faulty dashboard cable
assembly.
Faulty WTEC II cab
transmission harness.
Faulty rear lights cable
assembly.
Faulty REVERSE
WARNING relay in WTEC
II VIM.
Faulty WTEC II
transmission ECU
pushbutton shift selector.
6.
WARNING
CAUTION
Read WARNING and
CAUTION on
following page.
e53. BACKUP LIGHT DOES NOT ILLUMINATE (CONT)
Circuit breaker CB70 OK.
Circuit breaker CB73 OK.
Both turn signals illuminate.
Engine starts.
Transmission reverse (R)
range OK.
Backup light lamps OK.
Backup light assembly OK.
WTEC II transmission controls.
If 12 VDC is not present,
wire 1903 is faulty.
Is 12 VDC present at
connector PX33
socket B1?
Repair wire 1903 from connector
PX33 socket B1 to circuit breaker CB73
terminal 8 (para 2-40) or replace WTEC II
dashboard cable assembly (para 7-10).
TM 9-2320-365-20-1
2-648 Change 1