6.2 Fault messages from the ADEC (ECU 7) engine management
control unit for the Series 4000 for C&I applications
The fault code numbers are generated by the engine governor and transmitted to the following display
unit.
The fault code (1) is made up of two letters and three numbers. The letters (e.g. "SE") indicate some-
thing about the device or the functional area that the message originates from. The numbers indicate
the precise fault.
The table below lists the possible letter codes:
Fault code
Description
Meaning
EC
ECU code
Fault message from ECU 7 engine governor
AL
AL
Alarm message from the SAM
RL
Redundancy Lost
Redundant CAN (CAN 2) not sending any
data – fault
DL
Default Lost
Default CAN (CAN 1) not sending any data
– fault
SE
System Error
System error from various devices on the
bus
SD
Sensor Defect
Defective sensor not sending any measured
values or sending incorrect values (outside
valid range)
Fault messages can also be caused by defective sensors/actuators. If the troubleshooting measures
listed in the table below prove unsuccessful, contact Service to have sensors/actuators checked and
replaced as necessary.
MS150026/02E 2013-11
| Troubleshooting | 41
TIM-ID: 0000008507 - 004
