josh817 Posted February 25, 2013 Share Posted February 25, 2013 (edited) Today my truck was giving me hell. Bad ground cable from the battery. I would turn the key on, fuel pump comes on, all electrics come on, but when I went to crank everything just cuts out and its like the battery has been disconnected. Turn the key off, cycle it, no power to anything at all. We found out the ground cable has become loose.Ok so we get it tight, everything works. Radio has been reset but now.... all the buttons work, they do something when I press them, they just don't do what they're suppose to. The "clock" button for instance will change the radio from FM/AM. The tune buttons will adjust the fade and the bass, the old fade and bass buttons are now the up and down for the tuner. I tried cycling the key, removing the face plate, undoing the battery for 20 seconds and reconnecting it, won't go back to normal. It's a Pioneer DEH-1900Ideas? Edited February 25, 2013 by josh817 Quote Link to comment Share on other sites More sharing options...
z240 Posted February 25, 2013 Share Posted February 25, 2013 No user servicable parts inside. Perfect excuse for a new stereo. Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted February 25, 2013 Share Posted February 25, 2013 Sounds like either the main processor, or the communications chip in the face got fried. If you know of someone else with the same model, you can try swapping faces to find out. Either way, time for a new unit. Yes it could be repaired, but by the time you spend the money on the repair, it would likely be cheaper to buy a new one. Quote Link to comment Share on other sites More sharing options...
josh817 Posted February 25, 2013 Author Share Posted February 25, 2013 That's a little annoying that just disconnecting the battery (12v supply) is enough to fry a unit... Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted February 25, 2013 Share Posted February 25, 2013 That wasn't the cause, it was the loose ground that cause intermittent voltage spikes, that caused it to happen. Quote Link to comment Share on other sites More sharing options...
loy Posted February 25, 2013 Share Posted February 25, 2013 Hmm does it have steering wheel controls installed?? Does the IR remote work correctly? Quote Link to comment Share on other sites More sharing options...
rejracer Posted February 25, 2013 Share Posted February 25, 2013 Some new stereo's have a reset button which is capable of setting the unit back to factory. I know some of them need power loss for much more than 20 minutes. Quote Link to comment Share on other sites More sharing options...
josh817 Posted February 25, 2013 Author Share Posted February 25, 2013 Oh and I forgot to mention, using the tuner to go through FM stations, instead of doing like 97.1-97.2-97.3-etc it now does 97.1-97.15-97.2-97.25 somehow it's doing .05 intervals... Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted February 25, 2013 Share Posted February 25, 2013 Oh and I forgot to mention, using the tuner to go through FM stations, instead of doing like 97.1-97.2-97.3-etc it now does 97.1-97.15-97.2-97.25 somehow it's doing .05 intervals... That's a European tuner setting IIRC. Odd. As suggested you can try the reset button, but disconnecting power does the same. Quote Link to comment Share on other sites More sharing options...
josh817 Posted February 26, 2013 Author Share Posted February 26, 2013 Took the fuses out for the entire day, now it works. I guess it needs a good long time to reset.Thanks for your suggestion guys! Quote Link to comment Share on other sites More sharing options...
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