everythings stopped working

captain jack

Turbocharged
Joined
Oct 10, 2009
Messages
874
Location
UK North West Cheshire
I have today fitted a PC8 & headlamp wiring harness from Eastern Beaver. It all works well but when I now start the engine the mileage reading & speedo do not work, & the 2 warning lights for engine fault & for temp/oil stay on. I think I have disturbed something in fitting the harness but I cannot find anything. Any help much appreciated.
 
Time to pull out the wiring schematic. Sounds like you put an open circuit into the instrument power.

Check your #3 fuse. That powers your instruments (on the drawing anyway).
 
Last edited by a moderator:
captain jack said:
Checked all fuses, instrument is powered up but nothing actually works. Going in to dealers on Wednesday, wish me luck!
Click to expand...

Looks like you're missing a ground from the sensor. You can check the wiring diagram page 18.45 to see if that's the problem. The indicator lights (turn signals) use the same ground as the speed sensor (cute). There are several taps along the way. Good Luck at the dealer.
 
barbagris said:
I do wonder sometimes WHO designed the loom. It's very easy to get a false earth.
Click to expand...

The question is "why" not "who." In my experience the answer is always down to $. It takes less wire to string a bunch of parts together than run seperate wires. Less wires means less wire cover. Less wire and wire cover means less cosmetics to cover the wire and covers. Fewer wires means fewer connectors. So forth and so on until you ultimately arrive at your query, "who's the insane crack addict Bozo during an LSD induced hallucination designed this, and why does he hate me?"
 
atomsplitter said:
The question is "why" not "who." In my experience the answer is always down to $.
Click to expand...
No WHO? - Somehow I think he learned electrics from a book - NOT from using it. I've no issue with splicing earth wires together. But they need to actually earth.
 
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