Forward Tilt Automatic Fork Leveling Does Not Stop - Toyota 8FGU15 Repair Manual

8 TROUBLESHOOTING
Phenomenon on
Control type
vehicle
Forward tilt auto-
matic fork leveling
does not stop. (Con-
Active mast function tinues to tilt to the
control forward most tilt pos-
ition without stop-
ping at the level pos-
ition)
Malfunction area
Checking method
and mode
▪ Tilt angle sensor
unit:
Tilt angle sensor
Sensor defect voltage check:
▪ Tilt angle sensor Tilt to forward and
installation: backward tilt posi-
tions and check the
Link, installation
voltage change.
part destroyed,
damaged
▪ Horizontal
matching value
for tilt angle
sensor:
-
Does not match
actual status (re-
match)
▪ Automatic fork
leveling switch
unit:
Open fault (in-
ternal damage)
▪ Automatic fork
leveling switch
detection mech-
anism (mini
lever, joystick
lever):
ON/OFF check with
analyzer.
Detection part
gap adjustment
defect
▪ Automatic fork
leveling switch
line (Power sup-
ply, signal,
ground):
Disconnection
fault (Harness,
connector)
▪ C/V tilt control
Turn the tilt solenoid
valve:
OFF and operate to
forward tilt using an
Stuck (internal
active test.
damage)
▪ SAS/OPS con-
troller:
-
Controller defect
8-169
Corrective action
If there is no
change, perform an
installation check or
replace the sensor.
Follow matching pro-
cedure to rematch.
Harness check or re-
place switch
If forward tilt can be
performed, replace
the C/V tilt control
valve.
Replace
8