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Fault code
J1939 SPN
J1939 FMI
Reason
Effect (only when fault code is active)
2353
2791
6
EGR Valve control circuit - Current above
normal or grounded circuit. A short circuit to
ground has been detected in the EGR valve
motor circuit.
Possible reduced engine performance.
2372
95
16
Fuel filter differential pressure - Data valid but
above normal operational range - Moderately
severe level. Excessive fuel flow restriction to
the high pressure fuel pump has been detected.
Possible reduced engine performance.
2373
1209
3
Exhaust gas pressure sensor circuit - Voltage
above normal or shorted to high source. High
signal voltage detected at the exhaust gas
pressure circuit.
Possible reduced engine performance.
2374
1209
4
Exhaust gas pressure sensor circuit - Voltage
below normal or shorted to low source. Low
signal voltage detected at the exhaust gas
pressure circuit.
Possible reduced engine performance.
2375
412
3
Exhaust gas recirculation temperature sensor
circuit - Voltage above normal or shorted to high
source. High signal voltage detected at EGR
temperature circuit.
Possible reduced engine performance.
2376
412
4
Exhaust gas recirculation temperature sensor
circuit - Voltage below normal or shorted to low
source. Low signal voltage detected at EGR
temperature circuit.
Possible reduced engine performance.
2377
647
3
Fan control circuit - Voltage above normal, or
shorted to high source. Open circuit or high
voltage detected at the fan control circuit.
The fan can stay on continuously or not
not run at
all.
2387
641
7
VGT Actuator driver circuit (motor) - Mechanical
system not responding or out of adjustment.
The smar t VGT controller has detected
incorrect stop limits, or the VGT is unable to
move to the closed position.
Possible reduced engine performance.
2398
171
2
Ambient air temperature - Data erratic,
intermittent, or incorrect. The ambient air
temperature sensor is reading an erratic value.
Possible reduced engine performance.
2448
111
17
Coolant level - Data valid but below normal
operational range - Least severe level. Low
engine coolant level detected.
none on performance.
2449
641
13
Vgt actuator controller - Out of calibration.
The VGT actuator has been installed incorrectly.
Possible reduced engine performance.
2468
102
3
Engine crankshaft speed/position - Data valid
but above normal operating range - Moderately
severe level. The engine speed has exceeded a
critical limit.
Engine will be shut down.
2554
1209
2
E x h a u s t g a s p r e s s u r e - D a t a e r ra t i c,
intermittent or incorrect. The exhaust gas
pressure sensor is reading an erratic value.
possible reduced engine performance.
※
Some fault codes are not applied to this machine.
Summary of Contents for HL955
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