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Model specific boards => Golf mk3 => Topic started by: rmdavies on 10 March 2011, 16:47

Title: Speedo Stopped Working When I Changed Radio ISO Plug.
Post by: rmdavies on 10 March 2011, 16:47

Hi,

I think the radio blue wire for the speed sensor touched a live.

The wiring is back to normal (I think) but no speedo or miles.

Have I balls'd up my speedo / circuit board or what ever so I may as well just get a replacement clock set, or is there something I have overlooked?


Thanks.

 

Title: Re: Speedo Stopped Working When I Changed Radio ISO Plug.
Post by: Wayne on 10 March 2011, 17:10

Have you blown a fuse, worth checking.

Title: Re: Speedo Stopped Working When I Changed Radio ISO Plug.
Post by: rmdavies on 10 March 2011, 20:11

Hi,

All the fuses are ok,

Cheers for your support.

Title: Re: Speedo Stopped Working When I Changed Radio ISO Plug.
Post by: Wayne on 10 March 2011, 20:30

Start checking the wiring or with a test lamp see if you have power to the dials if so they have blown.

Title: Re: Speedo Stopped Working When I Changed Radio ISO Plug.
Post by: dom on 10 March 2011, 20:33

Quote from: Wayne on 10 March 2011, 20:30

Start checking the wiring or with a test lamp see if you have power to the dials if so they have blown.

Good luck with that :grin:

Title: Re: Speedo Stopped Working When I Changed Radio ISO Plug.
Post by: rubjonny on 11 March 2011, 10:35

double check fuse 21, take it out and physically check it with a multimeter. if its ok, then you prob have a dead dash or burned wiring.

check the wire to pin 13 of the dash, goes to U2/1. unfortunately VW decided to make all the dash wires white in the mk3 which makes your job hard. also look at the black jumper block above the fusebox, and the wire from there to E/2 and D/8.

next check the plug on the speedo sensor, should have ign live across the black and brown wires. if that checks out then locate the blue jumper block above the fusebox, and look for burnt out wiring there, also check wire from fusebox pin U1/22 to dash clock pin 27, and also look at the white/bluue wire to pin G/11.

see my fusebox faq in the mk2 maintenance section for info on the pins, there are pictures of the fusebox in there too but its been rejigged a few times so the order is a little messed up

Title: Re: Speedo Stopped Working When I Changed Radio ISO Plug.
Post by: rmdavies on 11 March 2011, 13:04

Just a quick THANK-YOU before I get on with the work and report back, Cheers.