Originally Posted by
jamesmonter2
what voltage should be at the wiring harness in order to get this sensor heater to work? I measured 10.45volts. My battery is new and is measuring 12.5v Would cutting out the end connections and directly wiring the sensor to the harness work possibly? Im thinking if there is something bad in the connection I can eliminate it. A weak point for voltage drop is always at connections. And if i shorten the wire it would give me less resistance in the wire and able to transfer more voltage to the sensor. Sound possible to work?? How do i how that the heater is working in the sensor?
compare the voltage supplied to the other rear sensor. If its 10.45 check the wiring back to the ecu. If its more than 10.45 (closer to battery voltage, go through all the connectors going from the RCM to pin one (red with green stripe).