MTU 12 V 2000 M40A Operating Instructions Manual page 124

Fault
code
106
107
118
119
120
121
122
134
136
137
138
139
140
142
144
145
124 | Troubleshooting | MS150031/05E 2013-01
Alarm text Meaning
ERR REC1 NOT Check sum error of fault mem‐
VALID ory in EDM (redundant data
record 1)
ERR REC2 NOT Check sum error of fault mem‐
VALID ory in EDM (redundant data
record 2)
L1 SUPPLY Supply voltage too low (1st
VOLT. LOW limit)
L2 SUPPLY Supply voltage too low (2nd
VOLT. LOW limit)
L1 SUPPLY Supply voltage too high (1st
VOLT. HIGH limit)
L2 SUPPLY Supply voltage too high (2nd
VOLT. HIGH limit)
automatic engine shutdown
(depending on project design)
L1 T-ELEC‐ Temperature in ECU housing
TRONIC too high (1st limit)
15V POS ECU Electronic equipment defec‐
DEFECT tive;
automatic engine shutdown
15V NEG ECU Electronic equipment defec‐
DEFECT tive;
automatic engine shutdown
L1 5V BUFFER Power supply for pressure
TEST sensors defective.
SENSORPO‐ Power supply for pressure
WERDEFECT sensors defective.
L1 TE BUFFER Internal electronic fault (tem‐
TEST perature sensors)
TE BUF. ECU Internal electronic fault (tem‐
DEFECT perature sensors)
BANK1 ECU DE‐ Internal electronic fault;
FECT
Engine does not start
BANK2 ECU DE‐ Internal electronic fault;
FECT
Engine does not start
15V_GOOD ECU Electronic equipment defec‐
DEFECT tive;
automatic engine shutdown
Task
If fault occurs repeatedly: Contact Serv‐
ice.
If fault occurs repeatedly: Contact Serv‐
ice.
Check ECU supply voltage.
Check ECU supply voltage.
Check ECU supply voltage.
Check ECU supply voltage.
If engine was stopped: Start engine
(→ Page 114).
1. Improve engine room ventilation.
2. Reduce engine power.
Contact Service.
Contact Service.
1. Disconnect connectors X2 and X3
from ECU. If alarm does not disap‐
pear: Contact Service.
2. Check wiring (pressure sensors).
3. Contact Service.
1. Disconnect connectors X2 and X3
from ECU. If alarm does not disap‐
pear: Contact Service.
2. Check wiring (pressure sensors).
3. Contact Service.
Contact Service.
Contact Service.
Contact Service.
Contact Service.
Contact Service.