Volkswagen CJDA, Workshop Manual

Page: 59 / 553

Indicated on display Possible cause of fault Possible effects Fault remedy
Electr. fault in circuit
◆
Open circuit or line
short-circuit
◆
-N33- defective
◆
Engine is switched off
◆
Engine fails
– -N33- Check.
⇒
Page 398
– Check for short to
positive on injector 4
(high- and low-wire). If
OK, check injector. If
OK, renew ECU.
00564/P0234
Charge pressure control
Control limit exceeded
◆
Defective charge
pressure control sole-
noid valve -N75-
◆
Hose connections in-
terchanged, not con-
nected
◆
Leak in charge air
system
◆
Torque limiting; regen-
eration is locked
– Check -N75-
⇒
Page 89 , final
control diagnosis
– Checking charge
pressure control
⇒
Page 333 .
– Checking charge air
system for leaks
⇒
Page 331
00567/P0237
Charge pressure sender
-G31-
Signal too low
◆
Open circuit or line
short-circuit
◆
-G31- defective
◆
Torque limiting; regen-
eration is locked
– -G31- Check.
⇒
Page 343
– Checking charge
pressure control
⇒
Page 333 .
– Pull off pressure sen-
sor, and apply a refer-
ence voltage (5 V) to
the signal line => sen-
sor raw voltage in
measured value block
"Air_uRawP-
CACDs"=reference
voltage => sensor de-
fective => sensor raw
voltage in measured
value block=reference
voltage => check sen-
sor wire to ECU
– Wire to ECU OK, ECU
defective
00568/P0238
Charge pressure sender
-G31-
Industriemotoren - Industrial Engines 2009
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Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
3
3 List of fault codes 43