I want to install a speed display unit in a 2002 UK Ford Focus 1.6.
Installation instructions for the unit (Defi VSD BASIS) suggest tapping
into the Speed Pulse (SP) wire going to the ECU but I don't want to do
that as the ECU connections are hidden behind a tamper-proof shield
that I don't want to er... tamper with!
Can anyone suggest another way to tap into the Speed Pulse signal
inside the car (I don't want to run wires through to the engine
compartment). Perhaps the Speed Pulse signal is fed to the radio?
Thanks for any insight you can give.
Sounds promising, but can you give more information please? I have the
Haynes manual but can't relate your suggestion to the information I
find there. Can you give more description or refer me to other sources?
Thanks for that info, Tim.
Looking at the Haynes manual information on connections to the radio, I
have come up with this stab at the connections I need to make:
For the speed pulse signal: White with Green tracer going to pin 445/6
For ground: Black with Yellow tracer going to
For ignition-switched power: Yellow with Green tracer going to pin
I'd be grateful if you could confirm these connections are correct.
This post is just to report back and complete the story.
I connected via the radio wiring, essentially as suggested in my last
post, though I used pin 6 on the power plug for ground. The display
works fine and is easy to read. I'm very pleased with it.
Thanks to other posters,
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