answersLogoWhite

0


Best Answer

Why is everyone so quick to blame the computer? If everything else works well when the car is running I would not even consider the computer to be the source of this problem? First check the battery. Some older batteries can have internal shorting that slowly drains the charge. Also check the alternator. If you have a diode problem it could be draining the battery. You'll have to find out where the current drain occurs before jumping to the conclusion that you have a computer problem. Especially check after-market installed equipment. To check if the alt. is the cause of your drain. remove the (-) wire from the battery (use a new or charged battery)hook an amp meter to this wire and the other wire from the meter to the ground post on the battery. turn on the meter to read DC amps 0-40. DO NOT START ENGINE. The meter should read around .4 or .7 amps. If the reading is much higher (mine was 5.6) remove the wire from the alt. if the amps drop then replace alt.

User Avatar

Wiki User

17y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you change computer chip that causes battery drain like you have left your lights on?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What causes battery to go dead when al lights and radio are on?

the battery is low,need to be charge


What causes interior lights overhead console and courtesy lights to flash on 2004 Chrysler 300M while driving?

I was told it is a computer issue. Try Disconnecting the battery for about 30 minutes to reset the computer, then reconnect. This has worked on my wife's 2005 300c and my sons 2004 dodge dakota.


What causes the battery not to hold a charge on a 1997 F150?

Defective battery or something is pulling power from the battery. Check the glove box light, interior lights, trunk light, hood light, brake lights, etc.


What change the traffic lights beside the pedestrians button?

A computer that the trafic lights are conected through.


Why do the flashers flash when the battery is hooked up?

This is because each time the battery is disconnected, the computer in the car loses power. When the new battery is hooked up, the computer system needs to be reset to stop the lights from blinking.


Subaru Legacy 1996 Computer reset?

Unbolt the battery for at least ten seconds. Mechanic, Why are the parking lights flashing after new battery installation?


What causes car to stall when you turn on lights?

Generally this is caused by something failing in the charging system. Test your battery and alternator.


What causes a battery to have no cold cranking amps?

All the lights work the voltage is fine and I just replaced the starter. But it registers no CCAs


What causes the headlights and interior lights and locks not to work on a 2001 Dodge Durango?

just had this problem with my 2002 durango, the mechanic ran it on the computer and nothing showed up so he disconnected the battery and then reconnected it and everything works now. The headlights, locks, panel lights, interior lights, locks, rear wipers all run through the body assembly moduale. Hope this helps you.


How do you change battery 2005 Subaru Outback?

my friend changed the battery in his 05 outback and now all the dash lights are on and the car wont go into gear. what happened?


Is there a reset switch after replacing the battery on a 98 lumina?

what do you mean a reset switch whats on ? once you change the battery u will have to run the car up to usual 25-50 mile for the computer to got through its 3 stages of cycles to clear the lights on the dash or to make the car idle again


How do you reset the computer in a '99 VW Jetta after unhooking the positive on the battery?

you have to put the key in ignition, and turn the key to on and lock for ten times. this will reset the computer only . unhooking the positive from battery will do nothing with lights on dash if problem, wasn't repaired.