yaza01 Posted October 26, 2016 Share Posted October 26, 2016 i have been trying to get this problem sorted out on my a6 on the alternator there is a plug it has 2.pins in the.alternator but the plug from the that plugs in only has one light blue wire is this correct i will try and post a pic of them both cheers Quote Link to comment Share on other sites More sharing options...
yaza01 Posted October 27, 2016 Author Share Posted October 27, 2016 plug has one pin alternator has 2pins measured volts and its 9.8 volts in wire all help appreciated cheers Quote Link to comment Share on other sites More sharing options...
Trevor Posted November 3, 2016 Share Posted November 3, 2016 That would seem to be correct as it's probably the voltage sensing wire that energises the alternator and puts the charging light out once there is a charge occuring. Quote Link to comment Share on other sites More sharing options...
VAGtune Posted November 16, 2016 Share Posted November 16, 2016 Voltage regulator is faulty in your alternator easy to replace, You will have Partial Consumer Shut-Off errors flagged in BCM and ESP fault on dash after approx 10-15 min from starting engine. Quote Link to comment Share on other sites More sharing options...
FrenchAvant Posted November 17, 2016 Share Posted November 17, 2016 The pin which is connected (light blue wire) is for the warning light ("L" connection) The other terminal is not used on your car. It is for the Digital Field Monitor, which connects to the ECU on some vehicles and provides information on the alternator load. For more information Google "regulator terminal guide" Quote Link to comment Share on other sites More sharing options...
FrenchAvant Posted November 17, 2016 Share Posted November 17, 2016 I just saw your other post on your alternator. When your alternator was replaced maybe the DFM was not connected. Suggest you reconnect the DFM pin if appropriate. Quote Link to comment Share on other sites More sharing options...
yaza01 Posted November 27, 2016 Author Share Posted November 27, 2016 sorted it cheers lads previous owner used cheap alternator fixed by replacing with valeo cheers 1 Quote Link to comment Share on other sites More sharing options...
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