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glf hatch dash lights issue ;/
Posted 03 July 2012 - 11:53 AM
Does anyone know why i would have the battery meter,stop lamp and brake fluid lamps illuminated on the dash at all times?
Sometimes very dim,other times quite bright even when driving...tends to vary depending on engine speed,sometimes makes no difference they stay on
Battery is holding charge,have no issues starting even if left for a week or two and meter on dash is stating its charging and rising and falling with revs
Have noticed f i disconnect the block connector from the back of the alternator the lamps all go out....
Help please,its an 84 GLF hatchback,guessing its just a dodgy connector somewhere but just wondered if anyone else has had same issue before i start replacing alternator etc
Posted 03 July 2012 - 01:57 PM
Posted 04 July 2012 - 01:19 AM
might try checking the ground wires. a lot of stuff can go wrong when the ground connections get old and bad. a couple of extra ground connections doesn't hurt and can help a lot with dim and dodgy lights.
also an old school trick is to start the car and then unhook the battery. the alternator is supposed to produce enough to run the car + charge the battery. if you notice a change, for better or worse, then I'd look at the alternator. a parts store can test them but it doesn't always show faulty.
the other part in that system that goes bad is the voltage regulator. Im betting that the one on your car is built into the alt, but they aren't always so you may want to check that.
with engine speed a factor i would first throw a couple of extra grounds in the system, since its free. if that doesn't help, get the alternator tested.
Posted 04 July 2012 - 08:21 AM
Confirm by verifying AC voltage is present at alt. output.
Posted 25 July 2012 - 12:30 PM
I am going to check it out, and see what I find. I will post back with any helpful info.
Posted 25 July 2012 - 01:31 PM
After I unhooked the battery, and hooked it back up, I no longer have any dash lights flickering, they are all off. The red square on the voltage gauge is still lit up, is this normal?
I know with Toyota, when the red square is lit up, that means there is an issue with the charging system, does this hold true to Subaru as well?
Voltage gauge is steady around 13v.
Posted 25 July 2012 - 04:29 PM
AC current superimposed on the voltage output from the alternator will defeat the diodes in the idiot lamp circuits and cause the "Christmas Tree" to light up in somewhat unpredictable (model to model/brand to brand) fashion.
Posted 26 July 2012 - 09:25 AM
Edited by Cougar, 26 July 2012 - 09:28 AM.
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