Mk 2 Yaris Battery change (car)

[spen2811]

Any one know how easy to change  the Battery in a mk2 yaris

[stantheman1]

Very easy indeed, what is it that you'd like to know?

[spen2811]

Negative first? Any radio codes? 

 

[mrpj]

Yes, negative (earth) terminal first. No radio code but if you don't use some method of keeping a12v supply you will probably lose the radio presets and time clock setting.

Devices for providing 12v are readily available and not expensive. Or do you have access to an extra Battery? Have a look on Youtube for videos on how to do this. I think even a 9v (e.g. smoke alarm) Battery will do the job of temporarily keeping all the settings including the vehicle computer.

[Mooly]

I wouldn't foresee any issues on a standard car (no aftermarket alarms etc) with a Battery swap. As others have said, negative first when disconnecting, however negative last when reconnecting.

Personally I wouldn't worry over trying to retain settings... and its actually the perfect opportunity to allow all the circuitry to reset to default values (ECU etc) and relearn from scratch. You may well feel the car drives 'better' for doing this, just allow the engine to idle for a couple of minutes before driving off for the first time while it relearns the base values... it may well idle a little unevenly for a few moments at first until it has re learnt these parameters. 

[Shavestick]

https://itstillruns.com/correct-way-jump-start-car-5985031.html

[spen2811]

All sorted  thanks 

MOT AND SERVICE tomorrow