Volkswagen Cars 2000-05

2.0L L4 VIN A Std 11

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Trouble Code: P0672



Cylinder 2 Glow Plug Circuit

Possible Causes:



Glow plug lamp circuit is open or shorted to ground
 
Glow plug relay control circuit is open or shorted to ground
 
Glow plug relay power circuit is open (test the 12GA fuse link)
 
Glow plug relay is damaged or it has failed
 

Trouble Code: P0673



Cylinder 3 Glow Plug Circuit

Possible Causes:



Glow plug lamp circuit is open or shorted to ground
 
Glow plug relay control circuit is open or shorted to ground
 
Glow plug relay power circuit is open (test the 12GA fuse link)
 
Glow plug relay is damaged or it has failed
 

Trouble Code: P0674



Cylinder 4 Glow Plug Circuit

Possible Causes:



Glow plug lamp circuit is open or shorted to ground
 
Glow plug relay control circuit is open or shorted to ground
 
Glow plug relay power circuit is open (test the 12GA fuse link)
 
Glow plug relay is damaged or it has failed
 

Trouble Code: P0684



Glow Plug Control Module to PCM Communication Circuit Range/Performance

Possible Causes:



Glow plug lamp circuit is open or shorted to ground
 
Glow plug relay control circuit is open or shorted to ground
 
Glow plug relay power circuit is open (test the 12GA fuse link)
 
Glow plug relay is damaged or it has failed
 

 
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