My Foxwell unit also showed pump activation and realtime rpms. Those seemed normal, but when I feel the pump with my hands im pretty sure there is no vibrations. Its at least very very weak. As said before, it is easy to feel the vibrations on the the pump easily excessible on the right side...
Just repeated the voltage measurement on the heater fluid temperature sensor harness.
I must have measured wrong the last time. Now I get 4,95V on terminal 2 (Says in the manual it should be on terminal 1?!).
I don't have the equipment to measure the continuity from A/C auto amp to the heater...
Hmm.. Its really wired that I dont have any DTC's....
Do you remember how many watts your PTC was using when this issue was going on?
Me and @Bill238 as have a PTC thats using 50-300W...
Did you have any DTC's? I have no heat, but also no DTC's....
I have my own post about it if you want to look :) https://mynissanleaf.com/threads/1-gen-2012-leaf-ze0-no-heat-no-dtcs-and-heater-fluid-temperature-sensor-malfunction.34594/
You are also seeing a fluctuation between -40*C and actual temperatur with Foxwell?
Is it your heater pump (that is circulating fluid through PTC) or your PTC that are showing no numbers?
I´ll try to do the continuity test as fast as possible and report back.
Already tried changing the sensor. Still same problem..
But I can start with the continuity test! Any next steps if that one is ok?
Is it the AC auto amp that supplies power to the temperature sensor?
Thanks!
Foxwell 170P.
Thanks for the replies :)
I´ve measured the voltage in the connections to the temperature sensor. One is 0V and the other is 0,1V. Both stable...
Any suggestions where to start looking for loose connections or broken wire?
Thanks so much!! Thats sounds like a logical place to start.
Just to be clear. There is no DTCs on the car (Except P3193 which I think is not related).
Shouldn´t the jumping in temperatur create a DTC?
Has anyone tried a functiontest of the "heater fluid temperatur sensor"?
The value should be...
Hello!
Hope someone here can help me with some insight. Would be much appreciated.
Just bought a 1.gen 2012 ZE0 with no hot air from A/C. Its blowing cold air at full capacity.
After clearing DTCs with diagnostics no DTC are coming back regularly. From last scan P3193 was only one.
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