3360262 - J22 DOOR MIRROR DEFROSTING NOT WORKING

When the heated rear screen button on the control panel is pressed, one of the door mirror demisters does not work.

Door mirror demisting is activated via the heated rear window demist control switch on the control panel. The body computer node receives the demisting control and sends a signal via the B-CAN network to the door nodes, which control demisting of the door mirrors.

		Results of the tests
1	CHECKING USING A TESTER	All OK	Problems met	Operation
	Connect an Examiner to the relevant door node and check for errors.	Continue to Step 5	Bus Off error on CAN line	Continue following the instructions for the diagnostic equipment.
			Bus Off error on CAN line	Continue to Step 2
2	CHECKING ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check continuity/insulation of electrical connection between door node and relevant door mirror. See   E3030  HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING	Continue to Step 3	Electrical connection broken or not insulated.	Restore electrical connection continuity/insulation See   E3030  HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING
3	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Keep the examiner connected and carry out active diagnosis to demist the relevant door mirror and check the mirror is properly supplied with power See   E3030  HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING	Continue to Step 4	No supply	Change relevant door node
4	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Replace the door mirror Op.   7005R30
5	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Change body computer node Op. 5505A32Search for the fault starting from another symptom'