Volkswagen CJDA Workshop Manual page 77

Indicated on display
Electrical fault in current
circuit
01649/P0671
Glow plug for cylinder 1
-Q10-
Electrical fault in current
circuit
01650/P0672
Glow plug for cylinder 2
-Q11-
Electrical fault in current
circuit
01651/P0673
Glow plug for cylinder 3
-Q12-
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Possible cause of fault Possible effects
◆ Open circuit or line
short-circuit
◆ Automatic glow peri-
od control unit -J179-
defective
◆ Open circuit or line
short-circuit
◆ Glow plug 1 -Q10-
defective
◆ Open circuit or line
short-circuit
◆ Glow plug 2 -Q11-
defective
Industriemotoren - Industrial Engines 2009 ▶
◆ Glow plug control
module is switched off
◆ Entire glow plug sys-
tem does not work
◆ Possible bad cold
start behaviour of en-
gine
◆ Possible smoke when
starting engine
◆ One of the glow plugs
is not functional
◆ One of the glow plugs
is not functional
3
Fault remedy
– Check -J179-
⇒ P age
89, final
control diagnosis
– Electr. test of pilot line
ECU<>glow period
control unit, connec-
tor.
– Check wiring to auto-
matic glow period con-
trol unit -J179-
⇒ P age
486, current
flow diagrams
– Electrical test of glow
plug, connector, wire
to glow plug control
unit.
– Pull off glow plug, and
check resistance.
– Check glow plug con-
trol unit
– If resistance is not in-
finite, check wire and
⇒ " Remov-
connector
ing, installing and
checking glow plugs"
on page 536
– Electrical test of glow
plug, connector, wire
to glow plug control
unit.
– Pull off glow plug, and
check resistance
⇒ P age 536
– If resistance is not in-
finite, check wire and
connector.
3 List of fault codes 61