Help with alternator


T

Type R Bob

Ek9 Owner
Joined
Dec 21, 2008
Messages
134
I recently got my alternator reconditioned on my 98 pre facelift Ek9 as it was only charging at 12.5 volts. When I fitted it back onto the car it was still only charging at 12.5 volts. I brought the car to the guy that reconditioned it and he checked the 4 wires on the green plug that goes onto the alternator. He got voltage on 3 wires but no voltage on the 4th wire. So I'm wondering does anybody have a wiring diagram that shows where these wires go as I need to trace them to see why I have no voltage on that wire? Cheers.
 
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Taken from my haynes manual
 
Last edited:
1 is the battery
2 is the engine fusebox
3 is the passenger fuse box
4 is the ignition switch
138 is the electrical load detector
139 is the alternator.

Colours for the wires out the alternator is as follows:

B (Ws) is white and is going into the engine fuse box
C (Ws/Gn) is white/green and is going to the engine control module
FR (Ws/Ro) is white/red and is going to the engine control module
IG (Sw/Ge) is black/yellow and is going to the passenger fuse box
L (Ws/Bl) is white/blue and is going to the instrument module (charge indicator)

Hope this helps :nice:
 
Sid-ek9 said:
1 is the battery
2 is the engine fusebox
3 is the passenger fuse box
4 is the ignition switch
138 is the electrical load detector
139 is the alternator.

Colours for the wires out the alternator is as follows:

B (Ws) is white and is going into the engine fuse box
C (Ws/Gn) is white/green and is going to the engine control module
FR (Ws/Ro) is white/red and is going to the engine control module
IG (Sw/Ge) is black/yellow and is going to the passenger fuse box
L (Ws/Bl) is white/blue and is going to the instrument module (charge indicator)

Hope this helps :nice:
Click to expand...

Thanks a million mate! This helped me loads! Rep added. :nice:
 
Hi am also wondering, does the ek9 use a 4 pin alternator same as the b18? Thanks
 
IIRC yes they do bud :nice: well the pre facelift ones anyway
 
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