Question about 2002 Ford Escape

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Voltage Drop I have an aftermarket radio in my vehicle but for some unknown reason every time I turn my vehicle off it loses any digital memory it may have.

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Radio should have 2 power leads, one should be switched, (hooked to key switch) and one should be hooked direct to battery so you don't lose memory when you shut the car off. Someone hooked them both to the key switch.

Posted on Mar 18, 2014


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I have a 1994 c1500 and i just had my alternator tested 3 times and passed every time the battery is new and cells are good and i dont see any ground probs but the alternator is not charging battery

Check battery voltage when vehicle is off should be about 12.5 volts start vehicle while running check voltage again should be about 14 if not check connection between battery and alternator

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96 nissan xe pickup>no anything first key turns. then stereo channels need resetting as after dead turn starts vehicle. Ignition switch? any advice appreciated

The radio has a permanent power wire to keep it's station memory. You are losing power on this for some reason. Possibly starter motor is shorting the battery. Possibly one of the big earth straps is corroded.

Jul 10, 2014 | 1996 Nissan Pickup

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Trying to install an aftermarket radio in my 1985 dodge truck the factory harness was cut how do I install the aftermarket radio

check with voltage meter you have a hot wire all the time that is yous radio memory wire then find switched wire that has 12 volts that will be radio wire also another swithed wire should be antenna

Feb 18, 2014 | Cars & Trucks

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My radio, car alarm, interior lights do not work on my 2006 subaru tribeca

The solution for the interior lights temp gauge etc. not working is the fuse under the hood as mentioned above.
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Mar 30, 2012 | 2006 Subaru B9 Tribeca

1 Answer

When I start the engine the radio goes black. I turn the radio on, it comes on AM590 and I have to reset the time.

The radio should have two power connections. One to maintain the memory and the other to operate it. Check that the fuses to the radio are not blown, one or the other if so equipped. If you can pull the radio out, then you can disconnect the wire harness to it and verify if voltage is getting to the memory lead of the radio. This can be a more difficult task on OEM radios, but on Aftermarket radios there is a separate lead for the memory that should always be energized as long as the battery is charged up to 12 Volts or so.

Nov 04, 2011 | Cars & Trucks

1 Answer

I can't read the obd plug from my VW passat 3B2 by 1999. I need to know what volts i'm supposed to read in the plug from 1 to 16. I already found that I had an aftermarket radio but still no connection...?...

Two of the wires in the plug should have battery voltage, one when the ignition key is turned to run or accessory position (radio B+ power) and one is hot all the time (keep alive B+ memory power)

Mar 16, 2011 | Volkswagen Passat Cars & Trucks

1 Answer

If I replace my own battery in a 2006 Honda Accord. Is there any programming that gets lost and needs to be redone?

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If your battery does die, and goes below a certain voltage, then go to the website and look under the 'owner's' section and follow the procedure for entering the radio code after you have supplied the website with the information from the owner of the vehicle.

Good luck on changing your battery without losing electronic device memory.

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I disconnected the battery and cleaned the terminals. I reconnected the terminals and the vehicle started. I then restarted the vehicle and parked it. Five minutes later it would not even turn over....


Sep 06, 2009 | 2001 Jeep Cherokee

1 Answer

Radio, clock, cigarette lighters not working

all on the same circuit. radio has two power supplys, one when the key on, and one all the time. aftermarket decks draw alot more than factory and this circuit may not be able to handle the extra load. look in owners manual and look in engine and interior fuse panels. it may say memory,clock,ecm keep alive etc. if need be check them all one is failed. now as for the engine light, most obdII vehicles use this circuit to keep computer memory alive... it will set a code for voltage lost. if you know your not overloaded or have a short, then its safe to go up to next size fuse,2.5 or 5 amp heavier. but thats it. if keeps happening you have a short or you may have to run a dedicated feed circuit for the deck. good luck youll find it

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1 Answer

Every time i turn my vehicle off i loose all my presets on my stereo

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