MrRalphMan Posted November 25, 2006 Share Posted November 25, 2006 I posted a while back to say that my back lights were out around the heater controls. I've just noticed that they do come on, but go off one the ignition is switched on. I have to admit that they looked good while they were on. Any one got an idea why they go off when the ignition is on? Many Thanks, Paul. Quote Link to comment Share on other sites More sharing options...
SimonM Posted November 26, 2006 Share Posted November 26, 2006 I have the same problem with mine have taken the control apart but i've been unable to fix it as all the contacts are ok so i thinks its down to a damaged pcb Quote Link to comment Share on other sites More sharing options...
stupra Posted November 27, 2006 Share Posted November 27, 2006 I've also got this problem, sometimes the lights work, other times they dont, doesn't matter if the ignition is on or not with mine, sometimes they come on when i'm driving along. Matt Harwood has had a quick look at them before now, an cleaned all the bits up, so I think i'll get him to have another look. Quote Link to comment Share on other sites More sharing options...
Ric Posted November 27, 2006 Share Posted November 27, 2006 probably some sort of dry joint. Quote Link to comment Share on other sites More sharing options...
Ian W Posted November 27, 2006 Share Posted November 27, 2006 hit it. mine would occassionally go off but a short, sharp tap on the side of the dash where the a/c control unit is usually sorted it out Quote Link to comment Share on other sites More sharing options...
MrRalphMan Posted November 27, 2006 Author Share Posted November 27, 2006 hit it. mine would occassionally go off but a short, sharp tap on the side of the dash where the a/c control unit is usually sorted it out I'll have to try the whack, but it's strange that they are on without the ignition and then off once it's on. Quote Link to comment Share on other sites More sharing options...
Ian W Posted November 27, 2006 Share Posted November 27, 2006 I'll have to try the whack, but it's strange that they are on without the ignition and then off once it's on. lol i think mine may have been due to a loose connection as i'd had the dash off to remove the stereo and it didn't do it at all after refitting it. Quote Link to comment Share on other sites More sharing options...
heckler Posted November 27, 2006 Share Posted November 27, 2006 its a dry joint on the small pcb in the heater control unit - where the orange plug is soldered onto the pcb... clicky... Quote Link to comment Share on other sites More sharing options...
MrRalphMan Posted November 27, 2006 Author Share Posted November 27, 2006 But mine are fine off 'Ignition on', just off when it is on.. Might be worth a try though, all I need now is someone who can solder. Quote Link to comment Share on other sites More sharing options...
heckler Posted November 27, 2006 Share Posted November 27, 2006 could be a chance that is the heater/AC ecu... Quote Link to comment Share on other sites More sharing options...
MrRalphMan Posted November 27, 2006 Author Share Posted November 27, 2006 could be a chance that is the heater/AC ecu... Don't like the sound of that. Does the ECU control when the lights come on? It's only the background lights that are affected, the 'status' lights are fine.. Paul. Quote Link to comment Share on other sites More sharing options...
heckler Posted November 27, 2006 Share Posted November 27, 2006 ok, the heater back lights uses the same feed as all of the others (dash/switches etc...) so assuming there working OK, i guess your looking at a possible wiring snag. wiring diagram for that is here I'd be tempted to see if you could borrow another heater control unit as the first step before trying to chase wiring snags Quote Link to comment Share on other sites More sharing options...
MrRalphMan Posted December 1, 2006 Author Share Posted December 1, 2006 Thanks dude.. Anyone out there got one I can borrow... Quote Link to comment Share on other sites More sharing options...
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