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Model specific boards => Golf mk3 => Topic started by: A8vgti on 28 November 2010, 13:20

Title: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: A8vgti on 28 November 2010, 13:20

Ive got a Mk3 GTi 1996 AGG. It occasionally has a fault when everything on the clockset stops working when the engine is started. Speedo and rev counter dont move and both LCD displays go blank. Im 99% sure the fault is with the wiring of the car rather than the clockset. I did do a search but couldnt find any posts relating to this problem. Has anyone had this fault?


Thanks Jamie

Title: Re: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: Len on 28 November 2010, 13:24

Probably in the ignition switch then.
But worth taking the clocks out to check

Title: Re: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: A8vgti on 28 November 2010, 13:41

Quote from: Len on 28 November 2010, 13:24

Probably in the ignition switch then.
But worth taking the clocks out to check

Really? You think. I have had the clocks out. Checked all wiring behind and around clockset Made sure everything was secure. Fitted it all back again and it worked. Bit annoying really, I hate intermittant faults! Its done it twice now.

Title: Re: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: Malz0r on 28 November 2010, 17:14

Sounds like an earth to me my gti did the same!

Title: Re: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: A8vgti on 30 November 2010, 09:58

Quote from: Malz0r on 28 November 2010, 17:14

Sounds like an earth to me my gti did the same!

Did you cure your fault? What did it turn out to be?

Thanks Jamie

Title: Re: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: Len on 30 November 2010, 10:27

I doubt very much that the clocks have their own seperate earth!

Title: Re: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: rubjonny on 30 November 2010, 11:17

well you would be wrong :P
the dash earths to the engine block somewhere, its one of the brown/white wires. rear corner passenger side on 16v, on 8v its on the front near driver side i think

Title: Re: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: Len on 30 November 2010, 13:01

Ah right! But I always assume that earths go to the body/chassis, didnt know there was any earths to the engine!  :embarassed:
Oh well, also what's this about a dash sensor?????  :huh:

Title: Re: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: rubjonny on 30 November 2010, 13:09

yeah there are a couple earth wires to the head on the 16v, as well as the dash earth the ecu sensors all earth there too. take a look next time you under the bonnet, its in the far corner near the metal pipe. couple o ring terminals with brown/white and brown wires :)

dash sesnor? maybe mean dash temp sensor, which is the small black one on the side of the head with a red/yel wire on a 16v, nothing to do with op problem tho

Title: Re: Mk3 Speedo Clockset Fault. Everything Stops Working When Engine Is Running.
Post by: Len on 30 November 2010, 13:12

OK was reading stuff in another thread was all.