Download MTU 20 V 4000 C22 Operating instructions

6.2 ECU 4 alarms
Faults in the overall system are indicated as a four-digit code on the PIM display. The fault code numbers are generated by the ECU.
The four-digit code consists of one letter and three figures:
• The letter encodes when the fault occurred the last time:
A = currently present
B = within the last operating hour
C = one to four operating hours ago
D = four to twelve operating hours ago
Alarms that occurred more than twelve hours ago are deleted automatically.
• The three figures encode the fault itself as listed in the table below.
TIM-ID: 0000003161 - 001
Alarms can also be caused by defective sensors / actuators. If troubleshooting in accordance with the
following table is not successful, contact Service to have the sensors / actuators checked and, if required, replaced.
Fault code
Alarm text
Meaning
Task
003
L1 T-FUEL
Fuel temperature too high
(1st limit)
Reduce power.
004
L2 T-FUEL
Fuel temperature too high
(2nd limit)
Reduce power.
005
L1 T-CHARGE AIR
Charge-air temperature too
high (1st limit)
Reduce power.
006
L2 T-CHARGE AIR
Charge-air temperature too
high (2nd limit)
Reduce power.
009
L1 T-INTERCOOLER
Charge-air coolant tempera- Reduce power.
ture too high (1st limit)
010
L2 T-INTERCOOLER
Charge-air coolant tempera- Reduce power.
ture too high (2nd limit)
015
L1 P-LUBE OIL
Lube-oil pressure too low
(1st limit)
Check engine-oil level and top up, if
required; (→ Page 94);
M015675/06E 2013-04 | Troubleshooting | 41