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   2.5tdi Error code p1503
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   Author  Topic: 2.5tdi Error code p1503  (Read 1044 times)
the_professor
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2.5tdi Error code p1503
« on: Oct 19th, 2006, 7:34pm »
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Hello chaps.
 
Im trying to get to the bottom of the meaning of the following code  
 
P1503 Aux speed sensor  
 
Dose anyone know where this is?  
 
Also I cannot to connect to the ford side of the ecu  I have used a veriety of scanners tna.  sikes , snap on etc  
 
The code i have got here is from the snapon generic obd reader. any ideas what im doing wrong  ?
 
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mazzy_j
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Re: 2.5tdi Error code p1503
« Reply #1 on: Nov 30th, 2006, 9:24am »
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I'm far from an expert with the obd side of things but wouldn't that be the VSS (Vehicle Speed Sensor)? If it is then its found on the gearbox.
 
If you have the pre-facelift engine then i'm 99% sure you can't use the full obd from the petrol models as the diesel is more mechanical than electrical.
 
Matt
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Simmo
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Re: 2.5tdi Error code p1503
« Reply #2 on: Nov 30th, 2006, 9:50am »
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Does THIS help you decide which system is compatible ?.
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