Indicated on display
Possible cause of fault Possible effects
Fault remedy
Short to earth
◆
Wire open circuit or
wire has short to
earth
Glow plug 1 -Q10- de-
fective
◆
One of the glow plugs
is not functional
– Check wiring to auto-
matic glow period con-
trol unit -J179-
, current
flow diagrams
– Electr. test of glow
plug, connector
– Pull off glow plug, and
read entry in event
memory
– If entry is still stored in
event memory, check
wire and connector
01644/P066C
Glow plug for cylinder 2
Short to earth
◆
Wire open circuit or
wire has short to
earth
Glow plug 2 -Q11- defec-
tive
◆
One of the glow plugs
is not functional
– Check wiring to auto-
matic glow period con-
trol unit -J179-
, current
flow diagrams
– Electr. test of glow
plug, connector
– Pull off glow plug, and
read entry in event
memory
– If entry is still stored in
event memory, check
wire and connector
01646/P066E
Glow plug for cylinder 3
Short to earth
◆
Wire open circuit or
wire has short to
earth
Glow plug 3 -Q12- de-
fective
◆
One of the glow plugs
is not functional
– Check wiring to auto-
matic glow period con-
trol unit -J179-
, current
flow diagrams
– Electr. test of glow
plug, connector
– Pull off glow plug, and
read entry in event
memory
– If entry is still stored in
event memory, check
wire and connector
01648/P0670
Glow period control unit 1
3
Industriemotoren - Industrial Engines 2009
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Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
60
Repair Group 01 - Vehicle self-diagnosis