need some dbw help

[Replica_rs4]

I have interesting detail to add, vbat only showing 7.3 v vs 12v ish with voltmeter at ecu power pins.

[stevieturbo]

If vbat at the ECU is only 7v, quite clearly that is a major problem.

Find out why. Something with the wiring is amiss.

Exactly where did you measure 12v ?

[Slowie]

These ECU's aren't known for reading battery voltage that accurately, but 7V is wrong. Hope something didn't get damaged.

You could perhaps try swapping the DBW wires to H-Bridge 3 or 4 (Slaveout 5+6 or slave out 7+8), to see if the h-bridge is damaged.