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| D3 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc |
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#1
20th October 2013, 07:40 AM
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New parking sensor still not solving things
Hi All,
I've got a faulty parking sensor (front mid-left) and I've bought 2 different sensors for it (new) and no luck on either fixing the issue which feels to me like its something else. Each time I clear vagcom the fault comes back instantly. Any ideas on how I can progress? Oli
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 CURRENT: 2006 Audi A8 D3 4.2 Tdi QS - CLICK HERE FOR PROJECT THREAD: Audi Exclusive Azure Blue, Amaretto brown interior, facelift rear lights, S8 mirrors, B&O, ACC, Digital TV, glass sunroof, Fridge, Extended Leather Pack 2, wooden steering wheel & gearknob, keyless entry, keyless start, electric boot, softclose doors SOLD : 2000 FL Silver D2 4.2 QS - Solar sunroof, Bose, Blinds, NavPlus, Playstation, DVD, wireless headphones, iPhone AV connection, RS6 steering wheel, chrome mirrors, phone prep, xenons, servotronic steering, Rear screen, TV-in-motion, NavPlus Alu rings, S8 exhaust, S8 bonnet grille, 385mm D3 S8 brakes, rubber winter mats, De-badged rear, US rear indicator clusters, 20" Final Edition diamond cut wheels, 15mm Eibach Pro spacers (front), 20mm H&R hubcentric spacers (rear). Audi A8/S8 D2 Flickr Group 
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#2
20th October 2013, 10:44 AM
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Maybe see if you can borrow a reverse control module and try it.. They're easy to get to, just in front of the media rack in the boot.
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2010 Jag XF 3.0D Portfolio S I know.. I know.. 
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#3
21st October 2013, 07:32 AM
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Never seen a faulty controller on just one sensor, albeit possible I suppose...
On the RS6 I had a similar sounding issue where I replaced the sensor with no success. Eventually turned out to be a broken wire in the PDC loom. Odd thing was there was no localised damage, it was just broken somewhere inside the bit of wire in the bumper. I guess in short, my advice would be to get a test meter from the pins in the boot where the PDC controller is to the connector at the front where the sensor goes. If a common wire has failed, its probably quite easy to piggy back off off the sensor next door. In the RS6 case, the wire was only brokem about 6 inches away from the sensor so I was able to repair the wire...... Sorry, I genuinely beleived it was just a sensor, as it is 99.9% of the time.... 
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#4
21st October 2013, 10:02 AM
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Quote:
 As the front end was resprayed at some point, i have a feeling that it has damaged a wire somewhere and that it is near the front by the bumper. I just called Carl @ A8Parts and am on the waiting list for a PDC wiring loom that goes from the radiator area into the bumper just in case but will do some more digging. Thanks again, Oli
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CURRENT: 2006 Audi A8 D3 4.2 Tdi QS - CLICK HERE FOR PROJECT THREAD: Audi Exclusive Azure Blue, Amaretto brown interior, facelift rear lights, S8 mirrors, B&O, ACC, Digital TV, glass sunroof, Fridge, Extended Leather Pack 2, wooden steering wheel & gearknob, keyless entry, keyless start, electric boot, softclose doors SOLD : 2000 FL Silver D2 4.2 QS - Solar sunroof, Bose, Blinds, NavPlus, Playstation, DVD, wireless headphones, iPhone AV connection, RS6 steering wheel, chrome mirrors, phone prep, xenons, servotronic steering, Rear screen, TV-in-motion, NavPlus Alu rings, S8 exhaust, S8 bonnet grille, 385mm D3 S8 brakes, rubber winter mats, De-badged rear, US rear indicator clusters, 20" Final Edition diamond cut wheels, 15mm Eibach Pro spacers (front), 20mm H&R hubcentric spacers (rear). Audi A8/S8 D2 Flickr Group Last edited by Oli18; 21st October 2013 at 11:00 AM.
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#5
10th November 2013, 07:37 PM
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Hi,
Just a quick update...i managed to fix this today. After some continuity testing, it ended up being as Ian suggests...a crack in a wire in the bumpers' PDC loom - mine also didn't have any visible damage similar to his RS6. I ended up soldering a new wire connection between the PDC sensor connector and the main loom connector. Sealed the loom all up again, and jobs a goodun'! Hope it helps someone else... Oli
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CURRENT: 2006 Audi A8 D3 4.2 Tdi QS - CLICK HERE FOR PROJECT THREAD: Audi Exclusive Azure Blue, Amaretto brown interior, facelift rear lights, S8 mirrors, B&O, ACC, Digital TV, glass sunroof, Fridge, Extended Leather Pack 2, wooden steering wheel & gearknob, keyless entry, keyless start, electric boot, softclose doors SOLD : 2000 FL Silver D2 4.2 QS - Solar sunroof, Bose, Blinds, NavPlus, Playstation, DVD, wireless headphones, iPhone AV connection, RS6 steering wheel, chrome mirrors, phone prep, xenons, servotronic steering, Rear screen, TV-in-motion, NavPlus Alu rings, S8 exhaust, S8 bonnet grille, 385mm D3 S8 brakes, rubber winter mats, De-badged rear, US rear indicator clusters, 20" Final Edition diamond cut wheels, 15mm Eibach Pro spacers (front), 20mm H&R hubcentric spacers (rear). Audi A8/S8 D2 Flickr Group Last edited by Oli18; 13th November 2013 at 11:50 AM.
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