2001 A4 Hood Sensor Switch

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AustinMini.OsiTech.Net - 06 Jan 2005 12:44 GMT

Greetings and salutations, I come in peace.

I have been fighting a no horn/no flash doorlock on my 2001 Audi A4.

Through sheer tenacity and general stickoittiveness I have traced the
potential cause to a damaged hood sensor switch.

I present pictures to you here:

http://audia4.ositech.net/Technical/hood_switch.htm

So I have two questions:

1. Where does the switch plug back into the wiring harness?

2. Where can I get the whole set up cheaper than at the dealer. Please
understand that I am a hardcore skinflint (I have seen a Psychiatrist and
have been given a clean bill of health on the matter) and always looking for
cheap price on same quality items.

A picture is worth a thousand words.

Oh I am bidding on Bentley manual on eFlay and expect (notice a good winning
attitude) to win by this weekend.

Thank you Sirs.

Signature

_________________________________
http://austinmini.ositech.net
Looking for cheap Austin Mini, Wagon, Clubman, Mokes and other variants for
sale in the USA.

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daytripper - 07 Jan 2005 00:26 GMT

>Greetings and salutations, I come in peace.
>
[quoted text clipped - 10 lines]
>
>1. Where does the switch plug back into the wiring harness?

This is Switch F120 in the wiring diagrams. It is connected through Wire
Connector T15a (15 point, black) located in Connector Station Right, A-pillar.
It is wired to pin A/4 on the Central Locking/Alarm/Interior Light Delay
Control Module (V94 in the diagram).

>2. Where can I get the whole set up cheaper than at the dealer. Please
>understand that I am a hardcore skinflint (I have seen a Psychiatrist and
>have been given a clean bill of health on the matter) and always looking for
>cheap price on same quality items.

If you're that hard core, you ought to just chuck the bad switch and hard-wire
the switch leads ;-)

Otherwise, you might try the breakers for a used one.

>A picture is worth a thousand words.

Yup.

>Oh I am bidding on Bentley manual on eFlay and expect (notice a good winning
>attitude) to win by this weekend.

That could help ;-)

/daytripper
'00 s4 6spd

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AustinMini.OsiTech.Net - 07 Jan 2005 03:06 GMT

"If you're that hard core, you ought to just chuck the bad switch and
hard-wire
the switch leads ;-)"

How do I do this?

I joined the wires together but no difference. Does one of them need to be
grounded and not just wrapped together?

Thanks.

Signature

_________________________________
http://austinmini.ositech.net
Looking for cheap Austin Mini, Wagon, Clubman, Mokes and other variants for
sale in the USA.

>
>>Greetings and salutations, I come in peace.
[quoted text clipped - 42 lines]
> /daytripper
> '00 s4 6spd

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daytripper - 07 Jan 2005 04:34 GMT

>"If you're that hard core, you ought to just chuck the bad switch and
>hard-wire
[quoted text clipped - 6 lines]
>
>Thanks.

Wait until you get your copy of the Bentley CD?

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AustinMini.OsiTech.Net - 07 Jan 2005 14:24 GMT

Thanks for the helping hand.

Issue resolved.

For the archive:

I had a no horn/no flash confirmation on my A4 despite coding code 16236
using VAG tool. Ended up being that my hood switch sensor wires were cut so
the car was locking but alarm was not setting.

Incidentally, the switch is an open one, so to bypass it you have to not let
the wires touch.

Signature

_________________________________
http://austinmini.ositech.net
Looking for cheap Austin Mini, Wagon, Clubman, Mokes and other variants for
sale in the USA.

>>"If you're that hard core, you ought to just chuck the bad switch and
>>hard-wire
[quoted text clipped - 8 lines]
>
> Wait until you get your copy of the Bentley CD?

Reply to this Message