vx power train light?? help

[christie23]

hi,
im just looking for any advise.. recently my power train light came on in my dash but has now gone off but it has left me with a few strange problems.

* if i push the horn, turn on head lights or wipers the car turns off
* when i indicate my hazard lights come on
* when i lock my car the head nights flash instead of the indicators

i have replaced the alternator & relays.

does anyone heard of this problem? im not sure if i should go to Holden or an auto electricition

thanks

[Tree cutter]

If your power train light came on then a fault code will be stored in the computer. I would take it to a holden dealer and get them to read the fault codes for you.