Indicated on display
Possible cause of fault Possible effects
Fault remedy
05522/P1592
Altitude sender/charge
pressure sender signal
Implausible ratio
◆
Defective charge
pressure sender
-G31-
◆
Altitude sender -F96-
in engine control unit
-J623- defective
◆
Torque limiting
◆
Regeneration locked
◆
EGR locked
– -G31- Check.
– If necessary, renew
-J623- or check elec-
trical connections
– With terminal 15 ON,
compare measured
values of sensors, and
check plausibility us-
ing a barometer
05635/P1603
Control unit defective
◆
Internal defect in en-
gine control unit
-J623-
◆
Engine is switched off
◆
Vehicle cannot be
driven anymore
– -J623- Renew
05636/P1604
Control unit defective
◆
Internal defect in en-
gine control unit
-J623-
◆
Engine is switched off
◆
Vehicle cannot be
driven anymore
– Check electrical con-
nection to actuator
– -J623- Renew
05642/P160A
Control unit defective
◆
Internal defect in en-
gine control unit
-J623-
◆
Engine does not start
or is difficult to start
– -J623- Renew
05648/P1610
Control unit defective
◆
Internal defect in en-
gine control unit
-J623-
◆
Fuel injection sup-
pressed
◆
Engine does not start
or stalls right after
starting
– -J623- Renew
05650/P1612
Engine control unit
Incorrectly coded
◆
Invalid control unit
coding for engine
control unit -J623-
◆
Dateset 0 is chosen
◆
Various malfunctions
possible
– -J623- is not coded or
coded incorrectly. =>
recode ECU, or renew
it as necessary
05654/P1616
Glow period warning
lamp -K29-
Short to positive
◆
Wire has short to
positive
◆
-K29- defective
---
– Check -K29-
control diagnosis
– Electrical test of pilot
line, connector or
lamp
3
Industriemotoren - Industrial Engines 2009
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Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
68
Repair Group 01 - Vehicle self-diagnosis