2KZ/2K0
1-4-21
4103 BD initialization problem
(M)
BD is not detected within one
second after the polygon
motor stabilizes.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
BDPWB and APCPWB
APCPWB and LSU connect PWB (YC3)
LSU connect PWB and engine PWB (YC12)
Defective
APCPWB.
Replace the Laser scanner unit (M).
(see page 1-5-20)
Defective BDPWB.
Defective Main
PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-30).
4104 BD initialization problem (Y)
BD is not detected within one
second after the polygon
motor stabilizes.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
BDPWB and APCPWB
APCPWB and LSU connect PWB (YC4)
LSU connect PWB and engine PWB (YC12)
Defective
APCPWB.
Replace the Laser scanner unit (M).
(see page 1-5-20)
Defective BDPWB.
Defective Main
PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-30).
4600 LSU cleaning motor error
When the LSU cleaning motor
is driven, an error signal is
detected continuously for 1 s.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity of the connector cable. If none, replace
the cable.
LSU cleaning motor and LSU connect
PWB(YC11)
LSU connect PWB and engine PWB(YC12)
Defective drive
transmission sys-
tem.
Check if the rollers and gears rotate
smoothly. If not, grease the bushings and
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 1-5-31).
Code Contents Causes
Check procedures/
corrective measures
Y113010-4 Sevice Manual
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