MTU Detroit Diesel 12 V 2000 P62, Техническая публикация

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Troubleshooting 81
Fault
code
Alarm text Meaning Task
118 L1 SUPPLY VOLT.
LOW
Supply voltage too low (1st limit) Check ECU supply voltage.
119 L2 SUPPLY VOLT.
LOW
Supply voltage too low (2nd limit) Check ECU supply voltage.
120 L1 SUPPLY VOLT.
HIGH
Supply voltage too high (1st limit) Check ECU supply voltage.
121 L2 SUPPLY VOLT.
HIGH
Supply voltage too high (2nd
limit)
automatic engine shutdown
(depending on project design)
Check ECU supply voltage.
If engine was stopped: Start engine
( → Page 51).
122 L1
T-ELECTRONIC
Temperature in ECU housing too
high (1st limit) 1. Improve engine room ventilation.
2. Reduce engine power.
134 15V POS ECU
DEFECT Electronic equipment defective;
automatic engine shutdown Contact Service.
136 15V NEG ECU
DEFECT Electronic equipment defective;
automatic engine shutdown Contact Service.
137 L1 5V BUFFER
TEST Power supply for pressure
sensors defective.
1. Disconnect connectors X2 and X3 from
ECU. If alarm does not disappear:
Contact Service.
2. Check wiring (pressure sensors).
3. Contact Service.
138 SENSORPOWER-
DEFECT Power supply for pressure
sensors defective. 1. Disconnect connectors X2 and X3 from
ECU. If alarm does not disappear:
Contact Service.
2. Check wiring (pressure sensors).
3. Contact Service.
139 L1 TE BUFFER
TEST
Internal electronic fault
(temperature sensors)
Contact Service.
140 TE BUF. ECU
DEFECT
Internal electronic fault
(temperature sensors)
Contact Service.
142 BANK1 ECU
DEFECT
Internal electronic fault;
Engine does not start Contact Service.
144 BANK2 ECU
DEFECT
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
SUPPLY 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
SUPPLY
A/D-converter supply voltage too
low
Contact Service.
MS15009/00E 06-09 © MTU