Volkswagen CJDA Workshop Manual page 95

Indicated on display
Short to earth
09263P242F
Diesel particulate filter
Overloaded
09298/P2452
Diesel particulate filter,
pressure differential
sender
Electrical fault
09299/P2453
Diesel particulate filter,
pressure differential
sender
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Possible cause of fault Possible effects
◆ Wiring short to earth
◆ -G495- defective
◆ Wiring short to earth
◆ -G495- defective
◆ Open circuit or line
short-circuit
◆ -G450- defective
Industriemotoren - Industrial Engines 2009 ▶
◆ Regeneration of die-
sel particulate filter
locked
◆ No service regenera-
tion possible anymore
◆ Regeneration of die-
sel particulate filter
locked
3
Fault remedy
– -G495- Check.
⇒ P age 442
– Pull off temperature
sensor => sensor raw
voltage in measured
value block
"MWB,Exh_uRaw-
TOxiCatDs" approx.
reference voltage
(3.3 V) ⇒ sensor de-
fective, sensor raw
voltage in measured
value block approx.
0 V ⇒ check wire to
ECU
– Wire to ECU OK, ECU
defective
– Renew diesel particu-
late filter
– -G450- Check.
⇒ P age 446
– Pull off pressure sen-
sor and connect signal
wire to earth ⇒ sensor
raw voltage in meas-
ured value block ap-
prox. 0 V => sensor
defective => sensor
raw voltage in meas-
ured value block > 0 V
=> check wire to ECU
– Wire to ECU OK, ECU
defective
3 List of fault codes 79