Heater in-line pump not working

[billanderson.email]

2015 Z3 440 Raptor and not getting warm air when the blower is on.
Switches on the screen and in the glove box are on and working, blowing cool air.
I do not see any valves that cut warm coolant off.
It appears the in-line pump is not pumping.
What am I missing?,

[Brianrzr]

The lines may be plugged with debris, try flushing them out. On my RZR, the pump is behind the seat, you can feel it operate. If you leave the engine off but turn on the heater, you should also be able to hear the pump run.

[billanderson.email]

The blowers are working, but no pump running. I look at the pump, feel it, listen to it and nothing. Is there an engine/computer code that can fix it?

[KoolAid]

Its driven by a jumper harness from the fuel pump on the starboard side. It has a fuse too so maybe its blown. Should be a relay, power (with fuse) ground wire, 2 wires to pump and the rest of the harness jumpers from the fuel pump.

[DrDipscheet]

Its driven by a jumper harness from the fuel pump on the starboard side. It has a fuse too so maybe its blown. Should be a relay, power (with fuse) ground wire, 2 wires to pump and the rest of the harness jumpers from the fuel pump.

Is the fuse in line with the wire? So not in the fuse box under the steering wheel. Mine is not blowing but I feel water through it running and just had the core replaced last year.


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