Hello, I started the car and got 3 lights in the dash. Red light for mission oil and diff oil and yellow for abs.

Checked oil and levels. all fine.

Checked codes - none

Battery level - fine 12.9v

 

Any idea what can cause the 3 lights?

Black relay/ fuse box on passenger inner wing under bonnet, check the lid for the fuse marked engine cont. ( RED 10 AMP ) even if looks ok replace anyway, forms part of the alternator exciter circuit, a blown fuse can cause low charge voltage and the warning lights issue you have.

 

Jeff TT

Checked that and replaced fuse, no change. Battery at 12.35v at idle

ok, reved it a bit hard and lights went out :)

The engine cont fuse is part of the alternator charge circuit and as you have found the alternator output is the issue, check the connections spades where the fuse fits as a bad connection there can lead to the same issue, failing that it could be the internal alternator rectifier or even a corroded power cable connector on the alternator.

 

 

Jeff TT