Volkswagen CJDA Workshop Manual page 71

Indicated on display
01542/P0606
Control unit defective
01542/P0606
Control unit defective
01543/P0607
Control module not plau-
sible
01576/P0628
Electric fuel pump 1 relay
Short to earth
01577/P0629
Electric fuel pump 1 relay
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Possible cause of fault Possible effects
◆ Internal defect in en-
gine control unit
-J623-
◆ Internal defect in en-
gine control unit
-J623-
◆ Internal defect in en-
gine control unit
-J623-
◆ Wire open circuit or
wire has short to
earth
◆ Fuel pump relay -J49-
defective
◆ Engine control unit
-J623- defective
Industriemotoren - Industrial Engines 2009 ▶
◆ None
◆ Hardware fault to filter
EMI. If the fault is not
detected another time,
it can be assumed
that it was just a
sporadic fault.
◆ 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
◆ On terminal 15 ON
pressurisation pump
runs continuously
3
Fault remedy
– -J623- For static fault,
renew engine control
unit⇒ P age 418
– -J623- Renew
⇒ P age 418
– 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-,
⇒ P age
486, current
flow diagrams
– If OK, renew control
unit.
3 List of fault codes 55