Workshop Manuals Factory service & repair Alfa Romeo
01 145 electrical system diagnosis02 146 electrical system diagnosis03 ABS, Alfa Romeo Code and engine management
Alfa Romeo 145/146 Electrical System Diagnosis Manual, Volume 3 (1994-2001)02 · 146 electrical system diagnosis
02 · Diagnostics

Checking Components

Make
Alfa Romeo
Model
145/146 Electrical System Diagnosis Manual, Volume 3
Year
1994–2001
Section
Power Windows › Checking Components
146 electrical system diagnosisChecking Components

Checking Components

Power window control unit N38

Diagram of power window control unit N38 with labeled parts A and B.

Check device:

test A (only for fusebox "A")

Power window switches B21a B21b B22 B23 B24

Schematic diagram of power window switch with pins 1 to 5 labeled.

SPECIFICATIONS

Check operation:

at rest: continuity between pin 3 and 1 and between pin 2 and 5, a.c. between the other pins

operating pushbutton for closing: continuity between pin 4 and 1; a.c. between the other pins

operating pushbutton for opening: continuity between pin 4 and 2, a.c. between the other pins

Parts & tools for this job For 1994 Alfa Romeo 145/146

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