XJ4PLAY
NAXJA Member #1194
- Location
- The Pacific Northwest
Anyone know how to/ the procedure to test the oxygen sensor heating circuit?
I installed a new set of O2 sensors and now have a malfunction in the upstream circuit. I replaced the upstream sensor at the suggestion of a mechanic, because it read too high of voltage. I then cleared the code/MIL light with a code reader and the code came back.
I am now getting a sensor malfunction and a heater malfunction code. My FSM says to refer to the DRB scan tool for test procedures, but I do not have that.
Any help would be appreciated.
P.S.- I switched back to the original sensor and still have a malfunction indicator. So I do not know if it is a coincidence that the heater circuit is bad or if the first new sensor caused an additional problem. I just changed the sensors as a preventative issue and had no MIL codes prior to the change.
I installed a new set of O2 sensors and now have a malfunction in the upstream circuit. I replaced the upstream sensor at the suggestion of a mechanic, because it read too high of voltage. I then cleared the code/MIL light with a code reader and the code came back.
I am now getting a sensor malfunction and a heater malfunction code. My FSM says to refer to the DRB scan tool for test procedures, but I do not have that.
Any help would be appreciated.
P.S.- I switched back to the original sensor and still have a malfunction indicator. So I do not know if it is a coincidence that the heater circuit is bad or if the first new sensor caused an additional problem. I just changed the sensors as a preventative issue and had no MIL codes prior to the change.