Simon_CSK Posted April 20, 2015 Share Posted April 20, 2015 Have some issues with the electrics on the P38 The message centre tells me that fuse 17 is blown but there is no evidence of it. The speedo and rev counter no longer operate either. Any ideas or is this a case of Auto Electrician? Quote Link to comment Share on other sites More sharing options...
David Sparkes Posted April 20, 2015 Share Posted April 20, 2015 What do you mean by 'no evidence'? The fuse looks and meters out as OK? Or simply that you cannot find anything that isn't working? The ETM gives different functionality for fuse 17, depending on whether the vehicle is wired pre or post 1999, which is yours? Have you put a meter on the fuse, or examined the fuse, and its socket, for corrosion? Also look at MF4 for condition, corrosion, etc, as this is the fuse that supplies F17. Quote Link to comment Share on other sites More sharing options...
steve b Posted April 20, 2015 Share Posted April 20, 2015 Almost certainly an internal fault in the BeCM , had the same on one recently fuse 6,7 & 17 failed on dash display , fuses all ok but minimal voltage on supply side of fuse board on the side of the BeCM . 17 is gearbox iirc , is it in limp mode (3rd gear) ? You can test this by running a live from one of the ring terminals thru a fuse and into the service side of 17 fuse position As for recon BeCM's ....good luck . I've not had a good time trying to get the one above sorted out ......it's running fine with the above wiring mod on each fuse cheers Steveb Quote Link to comment Share on other sites More sharing options...
Simon_CSK Posted April 20, 2015 Author Share Posted April 20, 2015 Car is 2001. The fuse was replaced and has now cleared that fault. The only thing not working now is the message centre not giving the MPG, trip, miles to refuel etc and the rev and speedo. Quote Link to comment Share on other sites More sharing options...
elbekko Posted April 21, 2015 Share Posted April 21, 2015 Looks like F17 is related to the brake lights. Did the fuse error and the speedo problems start at the same time? Definitely check the ground of the instrument cluster (E0564, behind RH footwell trim panel). That spot is known for water infiltration screwing up contacts in the connectors there. Quote Link to comment Share on other sites More sharing options...
Simon_CSK Posted April 21, 2015 Author Share Posted April 21, 2015 Looks like F17 is related to the brake lights. Did the fuse error and the speedo problems start at the same time? Definitely check the ground of the instrument cluster (E0564, behind RH footwell trim panel). That spot is known for water infiltration screwing up contacts in the connectors there. Yes but I shorted out the radio by mistake because the connector became dislodged and touched earth. Quote Link to comment Share on other sites More sharing options...
elbekko Posted April 21, 2015 Share Posted April 21, 2015 Check fuse 1, that does both radio and instrument cluster. Quote Link to comment Share on other sites More sharing options...
Simon_CSK Posted April 22, 2015 Author Share Posted April 22, 2015 Check fuse 1, that does both radio and instrument cluster. Nope not that. Quote Link to comment Share on other sites More sharing options...
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