MTU 20V4000GX2, Operating Instructions Manual

Page: 60 / 143

Fault
code Alarm text Meaning Task
137 L1 5V BUFFER
TEST Power supply for pressure sen-
sors defective. 1. Disconnect connectors X2 and X3 from
engine governor. If alarm does not dis-
appear: Contact Service.
2. Check wiring (pressure sensors).
3. Contact Service.
138 SENSORPOWER-
DEFECT Power supply for pressure sen-
sors defective. 1. Disconnect connectors X2 and X3 from
engine governor. If alarm does not dis-
appear: Contact Service.
2. Check wiring (pressure sensors).
3. Contact Service.
139 L1 TE BUFFER
TEST Internal electronic fault (tem-
perature sensors) Contact Service.
140 TE BUF. ECU DE-
FECT Internal electronic fault (tem-
perature sensors) Contact Service.
142 BANK1 ECU DE-
FECT Internal electronic fault;
Engine does not start Contact Service.
144 BANK2 ECU DE-
FECT Internal electronic fault;
Engine does not start Contact Service.
145 15V_GOOD ECU
DEFECT Electronic equipment defective;
automatic engine shutdown Contact Service.
146 L1 AD-TEST1 SUP-
PLY A/D-converter supply voltage
too low Contact Service.
147 AD-TEST1 ECU
DEFECT Electronic equipment defective;
automatic engine shutdown Contact Service.
148 L1 AD-TEST2 SUP-
PLY A/D-converter supply voltage
too low Contact Service.
149 AD-TEST2 ECU
DEFECT Electronic equipment defective;
automatic engine shutdown Contact Service.
150 L1 AD-TEST3 SUP-
PLY A/D-converter supply voltage
too low Contact Service.
151 AD-TEST3 ECU
DEFECT Electronic equipment defective;
automatic engine shutdown Contact Service.
170 MI MODULE FAIL Module in maintenance predic-
tor either defective or missing Contact Service.
171 MI NOT ACTIVE Maintenance predictor no more
activated Contact Service.
173 MODULE WRITE
LIMIT EEPROM write limit reached Contact Service.
180 CAN1 NODE LOST At least one device not detect-
ed on Default CAN bus
1. Check wiring (CAN bus).
2. Contact Service.
181 CAN2 NODE LOST At least one device not detect-
ed on Redundant CAN bus
1. Check wiring (CAN bus).
2. Contact Service.
182 CAN WRONG PA-
RAMETERS Consistency error in CAN pa-
rameters Contact Service.
183 CAN NO PU-DATA Error during project design da-
ta download in engine gover-
nor.
Contact Service.
60 | Troubleshooting | M015565/03E 2016-02
TIM-ID: 0000003158 - 001