22 · Diagnostics

Electric front windows / not working

Make: Fiat
Model: Doblò Factory Service Manual
Year: 2000–2010
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 in the control panel are operated the front electric windows do not work.

1	SWITCH SUPPLY CHECK	All OK	Problems met	Operation
		Results of the tests
	Check, in order: Engine compartment control unit fuse Switch supply See E3050 ELECTRIC FRONT WINDOWS	Continue to Step 2	Component defective	Replace the component (if a fuse is involved, search for the cause of the problem)
		Continue to Step 2	Connections not correct	Restore connections
2	RELAY CHECK	All OK	Problems met	Operation
	Check, in order: Relay operation Relay supply cables Cables connected to the Body Computer See E3050 ELECTRIC FRONT WINDOWS	Continue to Step 3	Component defective	Replace the component (if a fuse is involved, search for the cause of the problem)
		Continue to Step 3	Connections not correct	Restore connections
3	CHECK ON BODY COMPUTER	All OK	Problems met	Operation
	Check that the Body Computer sends the signal to the relay.	Continue to Step 4	No signal	Replace the Body Computer Op. 5505A32
4	FUSE CHECK	All OK	Problems met	Operation
	Check, in order: Fuses in dashboard fuse box Dashboard fuse box Supply cable between fuses and switches See E3050 ELECTRIC FRONT WINDOWS	Continue to Step 5	Component defective	Replace the component (if a fuse is involved, search for the cause of the problem)
			Fuse control box defective	Replace the fuse box Op. 5505A10
			Connections not correct	Restore connections
5	SWITCH EARTH CHECK	All OK	Problems met	Operation
	Check the condition of the earth lead for the switches in the control panel See E3050 ELECTRIC FRONT WINDOWS	Continue to Step 6	Connections not correct	Restore connections
6	MOTOR SUPPLY CHECK	All OK	Problems met	Operation
	Check the condition of the cable between the switches in the control panel and the electric window motors See E3050 ELECTRIC FRONT WINDOWS	Continue to Step 7	Connections not correct	Restore connections
7	SWITCH CHECK	All OK	Problems met	Operation
	Check the operation of the switches in the control panel See Test 7005MA	Continue to Step 8	Switches not working	Replace switches Op. 5505A24
8	ELECTRIC WINDOW MOTORS CHECK	All OK	Problems met	Operation
	Check the operation of the electric windows motors: check the continuity of the induction winding for each motor.	Continue to Step 9	Winding open circuit	Replace the motor Op. 7005M21
9	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 Heater recirculation not working Next › Electric front windows / not working in automatic mode

Parts & tools for this job For 2000 Fiat Doblò

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