Kyocera TASKalfa 5551ci - BD Steady-State Error C; BD Steady-State Error M; BD Steady-State Error y

2L6/2N6/2N5/2N4
1-4-112
4202 BD steady-state error C
The BD signal is not detected.
PD PWB C (LSU) 1. Confirm that the FFC wiring connector is
not distorted and connect the FFC wiring
all the way in.
Laser scanner unit and LSU relay PWB
(YC10)
LSU relay PWB (YC3) and Engine PWB
(YC12)
2. If the FFC wiring is disconnected,
replace the FFC wiring.
3. Replace the laser scanner unit (see
page 1-5-43).
Engine PWB 1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
4203 BD steady-state error M
The BD signal is not detected.
PD PWB M (LSU) 1. Confirm that the FFC wiring connector is
not distorted and connect the FFC wiring
all the way in.
Laser scanner unit and LSU relay PWB
(YC8)
LSU relay PWB (YC3) and Engine PWB
(YC12)
2. If the FFC wiring is disconnected,
replace the FFC wiring.
3. Replace the laser scanner unit (see
page 1-5-43).
Engine PWB 1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
4204 BD steady-state error Y
The BD signal is not detected.
PD PWB Y (LSU) 1. Confirm that the FFC wiring connector is
not distorted and connect the FFC wiring
all the way in.
Laser scanner unit and LSU relay PWB
(YC12)
LSU relay PWB (YC3) and Engine PWB
(YC12)
2. If the FFC wiring is disconnected,
replace the FFC wiring.
3. Replace the laser scanner unit (see
page 1-5-43).
Engine PWB 1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
Code Contents Related parts
Check procedures/
corrective measures