That's often related to kill switch wires shorting to something. There's a pretty good voltage on them. Check your ignition switch wiring. I'm betting that one of the kill wires is disconnected and touching something on the console, or has it's insulation rubbed off and touching something on the console. Should be an easy fix.
Yeh, I put a meter between throttle and steering wheel and the meter pegged, checked cables then saw the ignition switch had twisted in the housing, I twisted it back and the meter went back to zero.