H1 Ignition switch

Make

Alfa Romeo

Model

156 Factory Service Manual

Year

1997–2002

Section

Manual electric controls › H1 Ignition switch

Connectors and pin-outsH1 Ignition switch

H1 Ignition switch

Connector H1A – front harness (white) – <03/98

Pin	mm²	Colour		To
15	2.5	AR	light blue/red	B25 pin - B30 pin -
30	4.0	M	brown	B5B pin @
50	2.5	RN	red/black	D3 pin E

Connector H1A – front harness (white) – from 2/99, Manual gearbox

Pin	mm²	Colour		To
15	2.5	AR	light blue/red	B98A pin 7 B98A pin 11
30	4.0	R	red	B99A
50	2.5	RN	red/black	D3 pin E

Connector H1A – front harness (white) – Selespeed

Pin	mm²	Colour		To
15	2.5	AR	light blue/red	B98A pin 7 B98A pin 11
30	4.0	R	red	B99A
50	2.5	RN	red/black	D5B pin 10 J05 pin 87

Connector H1B – dashboard harness (white) – from 01/00

Pin	mm²	Colour		To
STA	1.5	GV	yellow/green	D20 pin 4 D20 pin 6 M40C pin 8 G35 pin 3 P20A pin 6 P50 pin 1 H5B pin 6 D1 pin B6 D21A pin 10
POS	2.5	GN	yellow/black	D1 pin A8
INT	2.5	CN	orange/black	B1I pin 4 B98B pin 7 B98B pin 9

Connector H1B – dashboard harness (white) – S.W.

Pin	mm²	Colour		To
STA	1.5	GV	yellow/green	P20A pin 6 D20 pin 6 D20 pin 4 H5B pin 6 D1 pin B6 M40C pin 8 G35 pin 3 P50 pin 1 D21A pin 10
POS	2.5	GN	yellow/black	D1 pin A8
INT	2.5	CN	orange/black	B1I pin 4 B98B pin 7 B98B pin 9

Connector H1B – dashboard harness (white) – <03/98

Pin	mm²	Colour		To
STAZ	1.5	GV	yellow/green	D20 pin 4 D20 pin 6 M40C pin 8 G35 pin 3 P20A pin 6 P50 pin 1 H5B pin 6 D1 pin 14 D21A pin 10
POS	2.5	GN	yellow/black	D1 pin 3
INT	2.5	CN	orange/black	B1I pin 4 B11 pin -

Wiring diagrams

• E1010
• E2010
• E2011
• E2012
• E2020
• E2021
• E2022
• E2030
• E2031
• E2520
• E2530
• E3020
• E3021
• E3022
• E3030
• E3032
• E3040
• E3050
• E3051
• E3060
• E3070
• E3075
• E3080
• E3510
• E3520
• E3580
• E3590
• E4020
• E4021
• E4022
• E4023
• E4040
• E5010
• E5020
• E5030
• E5050
• E6010
• E6020
• E6021
• E7010
• E7015
• E7020
• E7030
• E7050

14 General