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VW MKV-A5 Golf/Jettas Discussions area for A5/MkV Jetta/Golf (2005/2006 PD and 2009 CR).

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Old November 19th, 2017, 10:42   #1
Join Date: May 2012
Location: United States
Default Door switch question

My 06 TDI Jetta doesn't engage lights or anything when the door is open on the driver side. Would this cause for any reason the lift pump in tank to not prime even with key on?
I've had 3 pumps in now. I've tested them directly to the battery. They all work. However I'm not getting power to the pump and it runs when fuel is in the filter. This means that the power wire to the pump HAS to have broke right? Pump is grounded too. Fuel gauge works.

Does the + 12v line going to the lift pump go straight to the ecm?
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Old November 19th, 2017, 14:22   #2
Join Date: May 2012
Location: United States

Anyone? Really would love an answer before I start chasing down wiring.
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Old November 21st, 2017, 03:41   #3
Join Date: Nov 2017
Location: RI
TDI(s): 05.5 BRM

My 05.5 tdi driver door has the same symptoms and I have not had lift pump issues.
I am not sure about the +12v line
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Old November 22nd, 2017, 07:56   #4
Join Date: May 2012
Location: United States

Thanks for the reply. Helps tremendously!
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Old November 22nd, 2017, 13:22   #5
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Join Date: Jul 2007
Location: Marysville, Wa.

The 2006 BRM doesn't run the lift pump when you open the door. It runs the lift pump for about 3 seconds when you turn the key to run. If you lift up the rear seat lower cushion, when you turn the ignition to run, you will her the lift pump run momentarily if it is working correctly.

Additionally, when replacing the fuel filter there is no need to fill the filter bowl with fuel. all you do is turn the key to run and then to off about 3 times the filter bowl will be primed and the car will start without a bunch of cranking.
2006 Jetta TDI
5 speed, Manufactured 06/06
DC stage 1 SMF Clutch
Draw-Tite hitch
Dash Tray
Blue tint aspherical mirrors
Euro Cupholder
Euro Light Switch
2nd grocery hook
VCDS Hacks: DRL Disabled-Seatbelt Chime Disabled-Key fob Power Windows
Adjusted Cam to Crank Timing

Last edited by Ol'Rattler; November 22nd, 2017 at 13:30.
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