Functional Description (page 2 of 2)

Make

Alfa Romeo

Model

155 Factory Service Manual

Year

1992–1998

Section

Functional Description

Electrical 26 – Heating, ventilation and air conditioningFunctional Description · page 2 of 2

Connector for air conditioner wiring	G38 B	Under-dashboard ground-left side	G148b
	G38 B	Under-dashboard ground-left side	G148b
				2.5BLK • G38 A	1.5BLK • G1 C
Automatic control check unit	Q21a B	Outside air temperature sensor	Q24
	Q21a B	Outside air temperature sensor	Q24
				WHI • G39 5	GRY-BLK • Q36 A
				LTB-RED • Q25a 3	WHI • Q33 2	CRY-BLK • G38 B
Upper mixed air temperature sensor	Q25a	Lower mixed air temperature sensor	Q25b
	Q25a		Q25b
				GRY-BLK • Q36 2	CRY-BLK • Q35 2	LTB-RED • Q21a 1
Passenger compartment temperature sensor with motor	Q33	Air conditioning system ground	Q36
	Q33	Air conditioning system ground	Q36
				WHI-BLU • Q21d 4	GRY-BLK • Q21a 3	GRY-BLK • Q25b 3	CRY-BLK • Q35 5
CRY-BLK • Q36 3	GRY-BLK • Q35 5	CRY-BLK • Q35 5	CRY-BLK • Q35 5
BLK • G38 2	GRY-BLK • Q35 5	CRY-BLK • Q35 5	CRY-BLK • Q35 5
ORN • G38 1	GRY-BLK • Q35 5	CRY-BLK • Q35 5	CRY-BLK • Q35 5
WHI • Q21a 1	GRY-BLK • Q35 5	CRY-BLK • Q35 5	CRY-BLK • Q35 5

42 Heating & A/C