Fault code no. Description
Meaning
Action
No. of as-
sociated
parameter
374
AL Wiring TO 4
Alarm configuration; Short
circuit or wire break on tran-
sistor output 4 (TO 4).
-
1.8004.63
7
381
AL Wiring TOP 1
Alarm configuration; Short
circuit or wire break on tran-
sistor output 1, plant side
(TOP 1).
Check cabling to
plant.
2.8006.63
8
382
AL Wiring TOP 2
Alarm configuration; Short
circuit or wire break on tran-
sistor output 2, plant side
(TOP 2).
Check cabling to
plant.
2.8006.63
9
383
AL Wiring TOP 3
Alarm configuration; Short
circuit or wire break on tran-
sistor output 3, plant side
(TOP 3).
Check cabling to
plant.
2.8006.64
0
384
AL Wiring TOP 4
Alarm configuration; Short
circuit or wire break on tran-
sistor output 4, plant side
(TOP 4).
Check cabling to
plant.
2.8006.64
1
390
AL MCR exceeded
Alarm configuration;
DBR/MCR function: MCR ex-
ceeded.
1. If alarm is only
temporary, no ac-
tion required;
2. If alarm is contin-
uously active, con-
tact Service.
1.1085.00
9
392
HI T-Coolant Redundant
Alarm configuration limit 1;
Preliminary warning: backup
coolant temperature reading
too high.
1. Check wiring.
2. Contact Service.
2.0129.93
1
393
SS T-Coolant Redundant
Alarm configuration limit 1;
Main warning: backup cool-
ant temperature reading too
high; engine shutdown.
1. Check sensor
and wiring.
2. Contact Service.
2.0129.93
2
394
LO P-Lube Oil Redun-
dant
Alarm configuration limit 1;
preliminary warning: backup
engine oil pressure reading
too low.
1. Check sensor
and wiring.
2. Contact Service.
2.0112.92
1
395
SS P-Lube Oil Redun-
dant
Alarm configuration limit 2;
main warning: backup engine
oil pressure reading too low.
1. Check sensor
and wiring.
2. Contact Service.
2.0112.92
2
396
AL T-Coolant Max Dis-
crep.
Alarm configuration; maxi-
mum coolant temperature
discrepancy.
1. Check sensor
and wiring.
2. Contact Service.
1.8004.62
6
397
AL P-Oil Max Discrep.
Alarm configuration; maxi-
mum engine oil pressure dis-
crepancy.
1. Check sensor
and wiring.
2. Contact Service.
1.8004.62
5
400
AL Open Load Digital In-
put 1
Alarm configuration; wire
break at digital input 1; wir-
ing defective or no resist-
ance across switch.
1. Check wiring.
2. Contact Service.;
3. Check input of
target device.
2.8006.62
5
54 | Troubleshooting | MS150026/02E 2013-11
TIM-ID: 0000008507 - 004
