2MV-1
1-4-24
4104 BD initialization problem (Y)
BD is not detected within two
seconds 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 1-5-21)
Defective BDPWB.
Defective PWB. Replace the engine PWB or LSU connect
PWB and check for correct operation
(see page 1-5-45).
4600 LSU cleaning motor error
When the LSU cleaning motor
is driven, an error signal is
detected continuously for 2 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 1-5-45).
4700 VIDEO ASIC device error
Mismatch of reading data from
two locations occurs eight
times successively.
Mismatch between writing
data and reading data occurs
eight times successively.
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.
Main PWB (YC105) and engine PWB
(YC17)
Defective PWB. Replace the main PWB or the engine PWB
and check for correct operation
(see page 1-5-43, 1-5-45).
4950 LSU CPU communication
error
A communication error is
detected 10 times in succes-
sion.
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.
Main PWB and video PWB (YC1)
video PWB and LSU connect PWB (YC10)
Defective PWB. Replace the main PWB or video PWB and
check for correct operation
(see page 1-5-43, 1-5-49).
Code Contents Causes
Check procedures/
corrective measures
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