Thread: Defender TD5 Tachometer Installation

<span style="color:blue">i ran my cable through split conduit and followed the wiring from the abs ecu out and up over the transmission up and in through the firewall....

i used the power and light from the clock as there is no longer a clock in the dash.......


some vehicles may already have a wire behind the instruments you can get the feed from for the tacho to save you having to run a wire from the ecu.....

and there are two wires with the same colour on the ecu plug....
(pink and grey from memory)...
you need to use pin 19 which is in the centre of the plug......


nothing hard.... just fiddly and fragile.....use patience.....


good luck......</span>

Thanks for the reply. I couldn't find the trace cable last night, but I'll take another look today to see if I can locate one. Has anyone seen if they can find a signal from the ABS unit under the bonnet?

Am I correct that pin 19 off of the black ECU plug goes up to the ABS unit? If so, I wonder if there is a signal up there? I'll pull out my multimeter and do some checking to see if I get one.

I read that the power for the clock wasn't sufficient for the tach. I guess it's worked for others though.

where abouts are you....?

Melbourne

<span style="color:blue">sorry....too far for me to drop in on my way home from work.....</span> [img]style_emoticons/<#EMO_DIR#>/laugh.gif[/img]

Sure, no problem. If I can't located the cable I'll just run another one.

Had you soldered your new wire into the yellow/pink wire from pin 19, or did you use a quick connector? It's pretty tight down there, and I don't want to ruin anything.

I don't know why the other guide I had found said that the power from the clock wouldn't be ok for the tach. Maybe the tach pulls more current than the clock, and they thought that the clock's wire was too small.

I'll start work tonight and see how I go.

Thanks for the help

Originally posted by davisshannon
Sure, no problem. If I can't located the cable I'll just run another one.

Had you soldered your new wire into the yellow/pink wire from pin 19, or did you use a quick connector? It's pretty tight down there, and I don't want to ruin anything.

I don't know why the other guide I had found said that the power from the clock wouldn't be ok for the tach. Maybe the tach pulls more current than the clock, and they thought that the clock's wire was too small.

I'll start work tonight and see how I go.

Thanks for the help

<span style="color:blue">i solder everything i fit on lurch si i know it wont come loose.....
and i never use scotch locks....not even for emergencies....</span>

Thanks for all the help on this. I did the install today and the tach is reading ~750 rpm at idle. Looks like everything worked fine. Wish that I had the trace wire already behind the dash, that would have saved some time.