Hi All ,

i noticed the battery positive terminal have too much rust and i'm going to clean it up and surely i'll disconnect the battery while cleaning .

do you think any settings will be lost when i disconnect the battery ?

i don't want to be surprised when i reconnect my battery again and found something doesn't work , please advise .

Camry 2004 ,

watzmann

 

from experience
radio code security can be lost

if your radio has this type of anti theft feature
.make sure you have the numbers in hand and instructions how to re enter




.

 

Yes you are right , but in this case how i can find the radio code before i disconnect the battery !

i googled that should pay to get it , any other methods to get it ?

 

4-Cylinder?

If so the computer will need to relearn engine idle and trans shifting patterns.

All radio settings will be lost.

If your cleaver you can connect a small jumper wire between the plus battery terminal and the cable terminal before disconnecting. Or install a trickle charger on the plus cable terminal and negative battery terminal or connect to chassis ground.

 

no i don't think i can do this bridge , i don't have other cables or jumpers .

anyway , how i can learn the engine idle and trans shifting patterns to the car computer ?

yes 4 cylinder

 

Over time the computer will relearn on its own. Mean time the idle may be rough, engine have performance and shift problems. Sometimes the throttle body needs to be cleaned to get the idle OK.

You can't find a section of wire? It need not be a jumper cable as your not going to start the engine. The amperage will be much less then one amp.