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Code
Contents
4203
BD steady-state error M
The BD signal is not detected.
4204
BD steady-state error Y
The BD signal is not detected.
4600
LSU cleaning motor error
When the LSU cleaning motor
is driven, an error signal is
detected continuously for 2 s.
Y116141-8
Causes
PD PWB M (LSU)
Engine PWB
PD PWB Y (LSU)
Engine PWB
Defective connec-
Reinsert the connector. Also check for conti-
tor cable or poor
nuity of the connector cable. If none, replace
contact in the con-
the cable.
nector.
LSU cleaning motor and LSU connect
PWB(YC11)
LSU connect PWB and engine PWB(YC14)
Defective drive
Check if the rollers and gears rotate
transmission sys-
smoothly. If not, grease the bushings and
tem.
gears. Check for broken gears and replace if
any.
Defective motor.
Replace the LSU cleaning motor.
Defective PWB.
Replace the engine PWB or LSU connect
PWB check for correct operation
(see page 1-5-33).
1-4-37
Check procedures/
corrective measures
1. Confirm that the FCC wiring connector is
not distorted and connect the FCC
wiring all the way in.
Laser scanner unit and LSU relay PWB
(YC2)
LSU relay PWB (YC10) and Engine
PWB (YC13)
2. If the FCC wiring is disconnected,
replace the FCC wiring.
3. Replace the laser scanner unit (see
page 1-5-20).
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
36).
1. Confirm that the FCC wiring connector is
not distorted and connect the FCC
wiring all the way in.
Laser scanner unit and LSU relay PWB
(YC4)
LSU relay PWB (YC10) and Engine
PWB (YC13)
2. If the FCC wiring is disconnected,
replace the FCC wiring.
3. Replace the laser scanner unit (see
page 1-5-20).
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
36).
2NP
Service Manual
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