MSM04 no ECU power - only when stock ECU connected
 

Hey,

I'm helping a friend to bypass his msm04 immobilizer using an haltech 1000 ecu.

When I check the main power pin 4AF when no ECU is in I get no voltage.
When I connect the stock ECU 4AF does give 12v as it should.

I gave the haltech 1000 external 12v and it turned on and started the engine.

I would like to know what can cut the 12v on 4AF...

Thanks !
Elior

The ECU has to activate the main relay on 3H in order to get power to 4AF.

The Haltech needs to be powered by 4S.