Rt115q operator’s manual, Engine diagnostic codes – Ditch Witch RT115 Q User Manual
Page 167
Service - 166
RT115Q Operator’s Manual
Tier 3 Engine
Engine Diagnostic Codes
To read a step-by-step troubleshooting sequence for each code, see repair guide.
Diagnostic code
Definition
Possible cause
SPN 28, FMI 3
attachment throttle input high
check sensor (E2) and wiring
SPN 28, FMI 4
attachment throttle input low
SPN 29, FMI 3
primary throttle input high
SPN 29, FMI 4
primary throttle input low
SPN 100, FMI 1
engine oil pressure extremely low
oil pressure sensor (R1)
SPN 100, FMI 3
engine oil pressure input voltage high
oil pressure sensor (R1)
SPN 100, FMI 4
engine oil pressure input voltage low
oil pressure sensor (R1)
SPN 100, FMI 18
engine oil pressure moderately low
oil pressure sensor (R1)
SPN 105, FMI 3
manifold air temp input voltage high
manifold air temp sensor (R2)
SPN 105, FMI 4
manifold air temp input voltage low
manifold air temp sensor (R2)
SPN 105, FMI 16
manifold air temp moderately high
manifold air temp sensor (R2)
SPN 110, FMI 0
engine coolant temp extremely high
coolant temp sensor (R3)
SPN 110, FMI 3
engine coolant temp input voltage high
coolant temp sensor (R3)
SPN 110, FMI 4
engine coolant temp input voltage low
coolant temp sensor (R3)
SPN 110, FMI 15
engine coolant temp high least severe
coolant temp sensor (R3)
SPN 110, FMI 16
engine coolant temp moderately high
coolant temp sensor (R3)
SPN 158, FMI 17
ECU power down error
ignition switch (S2), ignition circuit
SPN 174, FMI 3
fuel temperature input voltage high
fuel temperature sensor (R4)
SPN 174, FMI 4
fuel temperature input voltage low
fuel temperature sensor (R4)
SPN 174, FMI 16
fuel temperature moderately high
fuel temperature sensor (R4)
SPN 190, FMI 0
engine overspeed extreme
crank position sensor (MT1)
SPN 190, FMI 16
engine overspeed moderate
crank position sensor (MT1)
SPN 620, FMI 3
sensor supply voltage high
wire 17 BLU/GRN, ECU (U1)
SPN 620, FMI 4
sensor supply voltage low
wire 17 BLU/GRN, ECU (U1)
SPN 627, FMI 1
all injector currents low
check battery voltage and wiring
SPN 629, FMI 13
ECU error
ECU (U1)