Vauxhall Workshop Service and Repair Manuals

I	Calibra
II	Astra-F

Unit code:  

H23	Airbag telltale
K31	Airbag control unit
U20	Contact unit assy.
U21	Driver's airbag unit assy.
U21.1	Driver's airbag squib
U22	Co-driver's airbag unit assy.
U22.1	Co-driver's airbag squib
X13	Diagnosis
X90	Instrument panel & airbag control unit wiring harness plugs
X91	Instrument panel & contact unit
X92	Contact unit & driver's airbag unit
X93	Instrument panel & co-driver's airbag unit

Lead colours:  

BL	Blue
BR	Brown
YE	Yellow
GN	Green
RD	Red
BL	Black
WE	White

Abbreviations:  

INS	Instrument assembly
Assy.	Assembly

III	Omega-B
IV	Corsa-B, Tigra

Unit code:  

H23	Airbag telltale
K31	Airbag control unit
U20	Contact unit assy.
U21	Driver's airbag unit assy.
U21.1	Driver's airbag squib
U22	Co-driver's airbag unit assy.
U22.1	Co-driver's airbag squib
X13	Diagnosis
XD	Diagnosis
X90	Instrument panel & airbag control unit wiring harness plug
X91	Instrument panel & contact unit
X92	Contact unit & driver's airbag unit
X93	Instrument panel & co-driver's airbag unit

Lead colours:  

BL	Blue
BR	Brown
YE	Yellow
GN	Green
RD	Red
BL	Black
WE	White

Abbreviations:  

INS	Instrument assembly
Assy.	Assembly