[PorkChop2020]

Hi guys iv got no power going to my bmw professional radio. When I turn the lights on it lights up and when I press cd eject it makes a noise bit about from that the screen is blank and no power going to radio. Anyone know what this could be

[ctuna]

Before doing anything else check your battery power/voltage.

[PorkChop2020]

Originally Posted by ctuna

Before doing anything else check your battery power/voltage.

Ok will do. The car has been laid up a few months and yesterday I full charged the battery but will get the volt meter on it

[PorkChop2020]

Originally Posted by ctuna

Before doing anything else check your battery power/voltage.

All checked and voltage and fuses all good. Iv put up on another thread the codes I have for the stereo system from ista

[ctuna]

If there was no power going to the Radio it wouldn't do anything.
What was the Voltage on the Battery?

[PorkChop2020]

Originally Posted by ctuna

If there was no power going to the Radio it wouldn't do anything.
What was the Voltage on the Battery?

Think it was 14.8 ish

[ctuna]

That is the alternator Voltage and it's a little high .
The battery voltage is measured with the motor not running.
What's the battery voltage?
High Voltages are not good for electronics.

[PorkChop2020]

Originally Posted by ctuna

That is the alternator Voltage and it's a little high .
The battery voltage is measured with the motor not running.
What's the battery voltage?
High Voltages are not good for electronics.

Battery was about 12.5v. I have just plugged into n an aftermarket stereo in and all works