TEST OPTIONS
REASON FOR QUESTION
NO
YES
KNOWN INFO
Continuity Test or
STE/ICE-R Test #91
POSSIBLE PROBLEMS
16.
If continuity is not present,
wire 490 is faulty.
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 III transmission controls.
CAUTION
Read CAUTION
on following page.
Is continuity present from
WTEC III relay K25
terminal 87 to connector
J51 pin 2?
Repair wire 490 from WTEC III
relay K25 terminal 87 to connector J51
pin 2 (para 2-40) or replace WTEC III dashboard
cable assembly (para 7-11).
TM 9-2320-365-20-1
2-668 Change 1
Faulty WTEC III relay K25.
Faulty WTEC III dashboard
cable assembly.
Faulty rear lights cable
assembly.
Faulty WTEC III
transmission ECU.