2L6/2N6/2N5/2N4
1-4-134
6770 Fuser IH low electric power 
error
Less than 0.6 times of the pre-
set power is detected for 120 
ms in succession after the IH 
heater remote has turned on.
Fuser unit
1. Confirm that the wiring connector is 
firmly connected and, if necessary, 
connect the connector all the way in.
Fuser unit and Fuser IH PWB (YC6)
2. If the wiring is disconnected, shorted or 
grounded, replace the wiring.
3. Replace the Fuser IH unit (see page 1-5-
70).
Fuser IH PWB
1. Confirm that the wiring connector is 
firmly connected and, if necessary, 
connect the connector all the way in.
Fuser IH PWB( YC4) and Engine PWB 
(YC26)
2. If the wiring is disconnected, shorted or 
grounded, replace the wiring.
3. Replace the Fuser IH PWB (see page 1-
5-96).
Fuser IH unit 1. Confirm that the wiring connector is 
firmly connected and, if necessary, 
connect the connector all the way in.
Fuser IH unit and Fuser IH PWB (YC9 
and 10)
Fuser IH PWB( YC4) and Engine PWB 
(YC26)
2. If the wiring is disconnected, shorted or 
grounded, replace the wiring.
3. Replace the fuser IH unit (see page 1-5-
70).
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