Buzzer Sounds Constantly; Ops Leaving Seat Warning Does Not Sound; Traveling Ops Return To Neutral Alarm Does Not Sound - Toyota 8FGU15 Repair Manual

8 TROUBLESHOOTING
Phenomenon on
Control type
vehicle
Buzzer sounds con-
stantly
OPS leaving seat
warning does not
sound.
Buzzer related (Only
export model except
"WITHOUT OPS
BUZZER" specifica-
tion)
Traveling OPS re-
turn to neutral alarm
does not sound.
Malfunction area
Checking method
and mode
▪ Buzzer unit:
Buzzer defect
▪ Buzzer harness
line (Lead-in
-
side):
Ground short or
link fault (Har-
ness, connector)
▪ SAS/OPS con-
troller:
-
Controller defect
▪ Buzzer unit:
Buzzer defect
▪ Buzzer harness
line (Power sup-
-
ply side, lead-in
side):
Disconnection
fault (Harness,
connector)
▪ Display setting:
OPS leaving
Check setting values
seat notification
with option set.
buzzer setting
disabled
▪ SAS/OPS con-
troller:
-
Controller defect
▪ Buzzer unit:
Buzzer defect
▪ Buzzer harness
line (Power sup-
-
ply side, lead-in
side):
Disconnection
fault (Harness,
connector)
▪ Direction lever
unit:
Lever defect
Refer to "Traveling
▪ Direction lever
OPS does not oper-
signal:
ate, cannot travel".
Disconnection
fault (Harness,
connector)
▪ Display setting:
Check setting values
USA specifica-
with option set.
tion enabled
▪ SAS/OPS con-
troller:
-
Controller defect
8-161
Corrective action
Harness check or re-
place buzzer
Replace
Harness check or re-
place buzzer
Change
Replace
Harness check or re-
place buzzer
Refer to "Traveling
OPS does not oper-
ate, cannot travel".
Change
Replace
8