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DerAlte · 12th October 2007, 16:30

If another HU hadn't been tried one would have suggested why don't you (or your installer) unmount the HU, connect a battery to it OUTSIDE the car and check if it does the same thing. Could have been a dry soldering problem, but this cannot happen with 2 HUs.

Otherwise, connect a lamp (yes, any automotive 12V lamp) to the reset wire (I think it is a red with yellow strip or the other way around) that is coming to the HU. This signal is supposed to go ON when you turn the key to crank the engine. If the lamp goes on intermittently WITHOUT you cranking the engine, there is some locha in that wire.

Another way the installer could check would be to disconnect only that wire and play the HU.

12th October 2007, 16:30	#7 (permalink)
DerAlte Team-BHP Support Join Date: Mar 2007 Location: Bangalore Posts: 1,821	If another HU hadn't been tried one would have suggested why don't you (or your installer) unmount the HU, connect a battery to it OUTSIDE the car and check if it does the same thing. Could have been a dry soldering problem, but this cannot happen with 2 HUs. Otherwise, connect a lamp (yes, any automotive 12V lamp) to the reset wire (I think it is a red with yellow strip or the other way around) that is coming to the HU. This signal is supposed to go ON when you turn the key to crank the engine. If the lamp goes on intermittently WITHOUT you cranking the engine, there is some locha in that wire. Another way the installer could check would be to disconnect only that wire and play the HU. __________________ Never believe it cannot be done - it's only that you haven't found out how!!!