2KA
1-4-32
C2271 Drum position sensor K error
While the drum rotates two turns, no sig-
nal is input to the sensor.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC3 on
the main front PWB and the connector of the
drum unit K, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective drum
position sensor K.
Replace the drum unit K (see page 1-5-26).
Defective PWB. Replace the main front PWB or engine PWB
and check for correct operation.
C2272 Drum position sensor C error
While the drum rotates two turns, no sig-
nal is input to the sensor.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC5 on
the sub front PWB and the connector of the
drum unit C, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective drum
position sensor C.
Replace the drum unit C (see page 1-5-26).
Defective PWB. Replace the sub front PWB or engine PWB
and check for correct operation.
C2273 Drum position sensor M error
While the drum rotates two turns, no sig-
nal is input to the sensor.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC7 on
the sub front PWB and the connector of the
drum unit M, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective drum
position sensor M.
Replace the drum unit M (see page 1-5-26).
Defective PWB. Replace the sub front PWB or engine PWB
and check for correct operation.
C2274 Drum position sensor Y error
While the drum rotates two turns, no sig-
nal is input to the sensor.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC3 on
the sub front PWB and the connector of the
drum unit Y, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective drum
position sensor Y.
Replace the drum unit Y (see page 1-5-26).
Defective PWB. Replace the sub front PWB or engine PWB
and check for correct operation.
Code Contents
Remarks
Causes Check procedures/corrective measures