wsm L503 Workshop Manual page 504

L3130 · L3430 · L3830 · L4630 · L5030, WSM
Display on LCD
Screen
Trouble Item
(Affected Probable Cause
Model)
Input voltage to • Lever sensor input
lever sensor voltage drop below 2.6 V
from ECU is for 0.1 second or more
failed (GST • Ground wire of lever
model) sensor short-circuited
GST lever • Lever sensor output
sensor is failed terminal is out of
(GST model) adjustment
• Lever sensor output wire
terminal broken or short-
circuited
• Input line broken
• Lever sensor defective
Proportional • Output voltage of
reducing valve proportional reducing
failure (GST valve terminal or return
model) current is out of
specification
• Valve wire broken or
short-circuited
• Proportional reducing
valve defective
• Check ground wire
• Check input voltage
at ECU connector
• Check sensor
connector
• It is possible to run
at its selected
speed position until
engine is stopped.
• Check sensor
connector
• Check sensor
voltage by Test
mode (Mode A)
• Check lever sensor
wire connector
(voltage) or check
sensor resistance
• Replace lever
sensor
• Check connector of
proportional
reducing valve
• Check proportional
reducing valve
resistance at valve
or ECU connector
• Check grounding
wire
• Connect emergency
connector and move
9-S5
ELECTRICAL SYSTEM
Reference
Solution
Page
9-S27
9-S29
–
–
–
9-S13
9-S29, S31
9-M15
–
9-S30, S32
9-S27
9-M17
W1053954
KiSC issued 02, 2007 A