Mazdaspeed 3

[Puddin15]

If the 0V is causing the fail-safe to trigger, could I set the CLP and FS0 jumpers and solder a resistor on the output signal to drop the run state voltage below the 4.7V threshold of the fail-safe?

Or what might make more sense is to remove the CLP jumper and use a 4.3V zener diode on the output signal. I believe that would result in an approximate 3.7V reference to the fail-safe given the voltage from the Aquamist with the CLP jumper removed is approximately 8V.