How to connect an AA battery to your MPVI Pro interface to troubleshoot
n some instances you may be asked to troubleshoot your interface by connecting it to an AA battery to rule out a hardware issue, here's a short how to.|
First you'll need to insert the raw voltage pid into the #1 slot in your table display
Next you will need to connect a smallish 3-5" long piece of 16-20 gauge wire to the #1 port on your mpvi pro interface
Next you will need to connect a smallish 3-5" long piece of 16-20 gauge wire to the #5(ground) port on your mpvi interface
Next you will need to connect the #1 piece to the postive terminal on the battery and the #5 piece to the negative terminal.
Now connect your interface to your vehicle and begin logging
Without the AA battery connected the voltage will likely hover around 1.34-1.37 volts this is perfectly normal.
New AA batteries will put out ~1.5v-1.6v, so if your interface is reading this voltage perfectly in the scanner then you likely have an issue somewhere else, whether its a custom PID that is incorrect or your wideband controller hasn't been properly configured.