Indicated on display
Possible cause of fault Possible effects
Fault remedy
01542/P0606
Control unit defective
◆
Internal defect in en-
gine control unit
-J623-
◆
None
01542/P0606
Control unit defective
◆
Internal defect in en-
gine control unit
-J623-
◆
Hardware fault to filter
EMI. If the fault is not
detected another time,
it can be assumed
that it was just a
sporadic fault.
– -J623- For static fault,
renew engine control
unit
01543/P0607
Control module not plau-
sible
◆
Internal defect in en-
gine control unit
-J623-
◆
Correction value of
O2 calibration = last
valid value
◆
Zero quantity calibra-
tion locked
◆
Calculation of diesel
particulate filter load
◆
Exhaust gas tempera-
ture regulation, FMO
◆
Regeneration of NOx
storage catalytic con-
verter is locked
– -J623- Renew
01576/P0628
Electric fuel pump 1 relay
Short to earth
◆
Wire open circuit or
wire has short to
earth
◆
Fuel pump relay -J49-
defective
◆
Engine control unit
-J623- defective
◆
On terminal 15 ON
pressurisation pump
runs continuously
– Pull off relay, and read
event memory again
– If in addition PSPOL--
> renew relay
– Otherwise, check wir-
ing between relay and
ECU
– Check wires between
-J49- and -J623-,
flow diagrams
– If OK, renew control
unit.
01577/P0629
Electric fuel pump 1 relay
Industriemotoren - Industrial Engines 2009
▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
3
3 List of fault codes
55