Code P1593 isn't a sensor it refers to the speed control switch on the steering wheel. However it could be a bad switch, bad clock-spring, bad harness or bad control module. To test you have to remove the air bag module from the steering wheel then remove the steering wheel, then the clock-spring and finally unplug the switch, then use a scan tool and test to see if the correct voltages are present on the wiring coming through the plug. Without a factory scan tool you would be very limited to testing and likely would only be able to change out the switch and hope it was the problem.
Monday, July 6th, 2020 AT 1:06 PM