Troubleshooting
50940411/G0219 180 Printed in U.S.A.
Models RT250 Deutz Engine Error Codes
543491 0 P1669 Rail Pressure Control/Sensor
Rail pressure fault (injector B/F temp error during
PLV4 limp home)
Table 55: Yanmar Engine Diagnostic Trouble Codes (DTC)
DTC Error Item
SPN FMI P-Code Part State
Table 56: Deutz Engine Error Codes
Error Code Engine Error Code Type Error Description
51-3
EGR valve actuator error
Short-circuit to battery or open load; short-circuit to
battery on ECU pin A19; actuator error EGR-Valve –
internal error, short-circuit to battery or open load;
power reduction may result
51-4
ECU detects a short-circuit to ground; short-circuit to
ground or battery on ECU pin A19; ECU voltage under
limit; actuator error EGR-Valve; internal error, short-
circuit to ground; throttle valve over-limit power
reduction may result
51-5
Signal range check low, measured current is below
target; actuator error EGR valve (2.9;3.6) or throttle-
valve (6.1,7.8); internal error; short-circuit to ground;
power reduction may result
51-6
Signal range check high; overload by short-circuit;
internal error; load over limit; short-circuit to battery or
open load; power reduction may result
51-7
Actuator position for EGR valve is not plausible;
internal error; angular misalignment of the flap
(deviation from setpoint > 7%); internal error, position
error of throttle flap (deviation > 7%); power reduction
may result
51-11
Powerstage actuator temperature limit reached due to
high current; actuator error EGR valve (2.9;3.6) or
throttle valve (6.1,7.8); internal error; temperature over-
limit
94-1
Sensor error
Low fuel pressure; engine shutdown may result
94-3
Low fuel pressure; signal range check high/low;
possible short or open load
94-4 Low fuel pressure; signal range check low
97-3 Water in fuel; maximum voltage exceeded
97-4 Water in fuel; minimum voltage exceeded
97-12 Fuel pre-filter sensor error
Fuel filter water level sensor: the maximum level is
exceeded; water in fuel level pre-filter; maximum value
exceeded; water level over limit (bad fuel quality)
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