22 · Diagnostics

Electric front windows / not working

Make: Alfa Romeo
Model: 147 Factory Service Manual
Year: 2000–2004
Section: Window opening mechanism › Electric front windows / not working

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Fault diagnosisElectric front windows / not working

ELECTRIC FRONT WINDOWS / NOT WORKING

With the ignition key in the ON position, when the buttons on the doors are operated, the electric front windows do not work at all.

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Verify: Fuses on dashboard and engine compartment junction units.	Continue to Step 1	Fuses damaged	Renew fuses
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or Examiner plus) to the diagnostic socket and check: that there are no errors in the Driver's Door Node unit	Continue to Step 2	There are errors in the Driver's Door Node unit	Continue according to the instructions for the diagnostic equipment
		Continue to Step 2	Lack of dialogue with the control unit	Check the Driver's Door Node unit earth and supply See E3050 ELECTRIC FRONT WINDOWS
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Keeping the diagnostic equipment (Examiner or Examiner plus) to the diagnostic socket, check: That there are no errors in the Body Computer control unit The operation of the services relay via active diagnosis of the Body Computer.	Continue to Step 4	There are errors in the Body Computer control unit	Continue according to the instructions for the diagnostic equipment
		Continue to Step 4	Services relay does not work	Continue to Step 3
3	CHECK SERVICES RELAY ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check relay supply and earth	Continue to Step 4	Connections broken	Restore connections See E3050 ELECTRIC FRONT WINDOWS
	Check relay supply and earth	Continue to Step 4	Connections correct: Faulty relay	Replace services relay
4	CHECK ELECTRIC WINDOW DEVICE	All OK	Problems met	Operation
	Check the mechanics and any impediments in the electric window device.	Continue to Step 5	Electric window device faulty	Replace the electric window deviceOp. 7035J13
		Continue to Step 5	Impediments are found	Remove the obstacle and check correct operation
5	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'

‹ Prev Climate control recirculation not working Next › Electric front windows / not working in automatic mode

Parts & tools for this job For 2000 Alfa Romeo 147

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