Volkswagen CJDA Workshop Manual page 96

3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Indicated on display
Implausible signal
09300/P2454
Diesel particulate filter,
pressure differential
sender
80 Repair Group 01 - Vehicle self-diagnosis
Possible cause of fault Possible effects
◆ Wire open circuit or
wire has short to
earth
◆ -G450- defective
◆ Control lines between
-G450- and diesel
particulate filter clog-
ged or interchanged
◆ No limitation
Fault remedy
– -G450- Check.
⇒ P age 446
– Check control lines
⇒ P age
427, Assem-
bly overview - diesel
particulate filter
– Check diesel particu-
late filter, CJDA,
⇒ P age
CJDD 460,
– Check diesel particu-
late filter, CPYA,
CPYB, CPYC, CPYD,
⇒ P age
CPYE 454,
– Check proper connec-
tion of hoses on pres-
sure differential send-
er (leaks, clogged,
etc.), perform electr.
test on sensor wire:
1.) Pull off pressure
sensor => sensor raw
voltage in measured
value block=reference
voltage (5V) => sen-
sor defective =>sen-
sor raw voltage in
measured value
block=reference volt-
age => check sensor
wire to ECU
– Wire to ECU OK, ECU
defective