3-39
Fault code
J1939 SPN
J1939 FMI
Reason
Effect (only when fault code is active)
2555
729
3
Intake air heater 1 circuit - Voltage above
normal, or shorted to high source. High voltage
detected at the intake air heater signal circuit.
The intake air heaters may be ON or OFF all
the time.
2556
729
4
Intake air heater 1 circuit - Voltage below
normal, or shorted to low source. Low voltage
detected at the intake air heater signal circuit.
The intake air heaters may be ON or OFF all
the time.
2634
641
12
VGT Actuator controller - Bad intelligent device
or component. An internal error has been
detected by the smart VGT controller.
Possible reduced engine performance.
2636
641
9
VGT Actuator driver circuit - abnormal update
rate. No communications on the J1939 data link
between the engine ECM and the smart VGT
controller.
Possible reduced engine performance.
2638
5298
17
After treatment diesel oxidation catalyst
conversion efficiency - Data valid but below
normal operating range - Least severe level.
T h e t e m p e ra t u r e i n c r e a s e a c r o s s t h e
aftertreatment diesel oxidation catalyst is lower
than expected.
Possible frequent need for aftertreatment
regeneration.
2639
3251
15
Aftertreatment diesel particulate filter differential
pressure - Data valid but above normal
operating range - Least severe level. The soot
load of the aftertreatment diesel particulate filter
has exceeded the recommended limits.
Possible reduced engine performance.
2646
110
32
Engine coolant temperature - Condition exists.
The EGR valve was closed to reduce engine
coolant temperature.
Possible reduced engine performance.
2718
520325
31
Brake switch and accelerator pedal position
incompatible - Condition exists. The ECM has
detected the brake pedal and accelerator pedal
were depressed simultaneously.
The engine will operate in limp home mode.
2771
3226
9
Aftertreatment outlet NOx sensor - Abnormal
update rate. No communications or an invalid
data transfer rate detected on the J1939 data
link between the ECM and the aftertreatment
outlet NOx sensor.
Possible reduced engine performance.
2777
3703
31
Particulate trap active regeneration inhibited
due to inhibit switch - Condition exists.
Regeneration of the diesel particulate filter has
been prevented due to the permit switch being
disabled.
Possible frequent need for aftertreatment
regeneration.
2961
412
15
Exhaust gas recirculation temperature - Data
valid but above normal operational range -
Least severe level. EGR temperature has
exceeded the engine protection limit.
Possible reduced engine performance.
2962
412
16
Exhaust gas recirculation temperature - Data
valid but above normal operational range -
Moderately severe level. EGR temperature has
exceeded the engine protection limit.
Possible reduced engine performance.
※
Some fault codes are not applied to this machine.
Содержание HL955
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