Hi guys, thanks for having me on the site, should have joined the forum ages ago (had the van for going on 8 years now!)
Had an issue with my speedo for a while now, it basically doesn't work (nor does the odometer) so I've had it in at a local auto electrician as it failed it's last MOT due to this. He's traced the problem to a crushed cable that feeds power and such to the tacho (van had a working life before it became my day van). This has likely melted the wiring loom and possibly fried the tacho itself. Apparently this was caused by a hamfisted replacement of a suspension strut (not by me, I paid good money to have these problems!!)
However, I managed to get a hold of a tacho emulator card which the electrician has fitted and has confirmed that the speed signal from the sender unit on top of the diff is being received and sent by the card but still no working speedo.
I'm getting the van back as he's tight for time and I'm tight for budget and going to see if a hardwired GPS speedo will get me through the MOT (as a short term solution to get me back on the road). However, this is not ideal as the speed signal is required for other systems (fueling, PAS etc) so needs a proper fix.
Is there anything I should be looking at that would stop the speed signal registering on the speedo dial (ABS sensors, faulty instrument cluster, simple break in the speed signal out wire). Is the speedo operation solely controlled by the signal from the sensor on the diff or does the ABS system play a part in this.
Any advice gratefully received, been beating my head off a wall with this for a while now.
Cheers,
Dave.
Had an issue with my speedo for a while now, it basically doesn't work (nor does the odometer) so I've had it in at a local auto electrician as it failed it's last MOT due to this. He's traced the problem to a crushed cable that feeds power and such to the tacho (van had a working life before it became my day van). This has likely melted the wiring loom and possibly fried the tacho itself. Apparently this was caused by a hamfisted replacement of a suspension strut (not by me, I paid good money to have these problems!!)
However, I managed to get a hold of a tacho emulator card which the electrician has fitted and has confirmed that the speed signal from the sender unit on top of the diff is being received and sent by the card but still no working speedo.
I'm getting the van back as he's tight for time and I'm tight for budget and going to see if a hardwired GPS speedo will get me through the MOT (as a short term solution to get me back on the road). However, this is not ideal as the speed signal is required for other systems (fueling, PAS etc) so needs a proper fix.
Is there anything I should be looking at that would stop the speed signal registering on the speedo dial (ABS sensors, faulty instrument cluster, simple break in the speed signal out wire). Is the speedo operation solely controlled by the signal from the sensor on the diff or does the ABS system play a part in this.
Any advice gratefully received, been beating my head off a wall with this for a while now.
Cheers,
Dave.
