Checking Components

Make

Alfa Romeo

Model

145/146 Electrical System Diagnosis Manual, Volume 3

Year

1994–2001

Section

Manual Air Conditioner › Checking Components

145 electrical system diagnosisChecking Components

Checking Components

Climate control fan Q1

SPECIFICATIONS
Rated voltage	12V
Maximum current	25.5 A
Speed at 12V/25°C in free air with impeller and support	3220 ÷ 3780 rpm
Motor direction of rotation	left

Climate control fan control Q4

Check the contacts corresponding to the different knob positions.

Climate control fan speed adjustment resistance Q5

SPECIFICATIONS
Section crossed	Total resistance	Fan speed
4-1	2.9 Ω	1st
3-1	0.8 Ω	2nd
2-1	0.3 Ω	3rd
none	-	4th
Thermal contact cut in temperature		90 ± 5°C

01 Diagnostics