J21 HEATED REAR WINDSCREEN NOT WORKING - Alfa - 147 - eLearn

With the ignition on, when the appropriate button on the control panel is pressed, the heated rear window does not warm up properly.

1	CHECK ON REAR WINDOW EARTH	All OK	Problems met	Operation
		Results of the tests
	Check that the heated rear window is connected to earth properly See E3030 HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING	Continue to Step 2	Connection not correct	Restore connection: See E3030 HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING
2	CHECK ON HEATING ELEMENT	All OK	Problems met	Operation
	Check the continuity of the heated rear window demisting heating element	Continue to Step 3	Heating element broken	Replace the rearscreen Op. 7035B14
3	CHECKING POWER SUPPLY	All OK	Problems met	Operation
	Check that the heated rear window is supplied properly: battery voltage must run through the cable.	Continue to Step 4	No supply	See table J20 REARSCREEN AND DOOR MIRROR DEFROSTING NOT WORKING
4	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'