Vauxhall Workshop Service and Repair Manuals

Table 3, Coding Tables

 

In order to reduce the number of different variants of control unit in production and service (reduced storage costs), codings are required.

 

By this means, the number of control units for all variants can be reduced to one unit.

 

The appropriate characteristic curves of the individual variants (e.g transmission type, air conditioning, octane number, etc.) are preprogrammed in the software of the control unit.

 

The appropriate characteristic curves can be activated by coding or reassigning the octane number plug (except C 30 SE).

 

Control Unit Parts Numbers

 

Model	Engine	Opel Parts Number	Alpha Code	Bosch Hardware No.
CORSA/NOVA	C 16 SEI	91 508 382	I *	0 261 200 377
		(Irmscher)
	C 20 NE	90 351 646	GC	0 261 200 373
	20 NE
KADETT-E/
ASTRA/BELMONT
	20 SEH	90 351 647	GD	0 261 200 375
	C 20 NE	90 351 648	GE	0 261 200 377
	20 NE
VECTRA/
CAVALIER
	20 SEH	90 351 649	GF	0 261 200 379

 

 

Control Unit Parts Number (continued)

 

Model	Engine	Opel Parts Number	Alpha Code	Bosch Hardware No.
	C 20 NE	90 351 650	GG	0 261 200 369
	20 SE	90 351 651	GH	0 261 200 371
	C 24 NE	90 351 652	GJ (MY '90)	0 261 200 384
OMEGA/
CARLTON
	C 24 NE	90 323 483	FR (MY '89)	0 261 200 166
	C 30 NE	90 351 653	GK	0 261 200 367
	C 30 SE	90 325 269	FZ	0 261 200 357
	C 30 SE	90 325 269	FZ	0 261 200 357
SENATOR-B
	C 30 NE	90 351 653	GK	0 261 200 367

 

 

Wiring Harness Coding

 

Designation of transmission versions

 

 

MT Vehicles                                                                                   AT Vehicles

 

Ter. 21   Unoccupied                                                                      Ter. 21   To ground

Ter. 42   To ground                                                                         Ter. 42   To Park/Neutral switch

Ter. 6     Unoccupied                                                                      Ter. 6     To transmission control unit (engine speed signal)

Ter. 51   Unoccupied                                                                      Ter. 51   To transmission control unit (transmission engagement signal)

Ter. 34   Unoccupied                                                                      Ter. 34   To transmission control unit

 

 

Designation of air conditioning versions

 

Vehicles without Air Conditioning                                                 Vehicles with Air Conditioni

 

Ter. 40   Occupied in control unit, unoccupied in vehicle              Ter. 41   To air conditioning switch

Ter. 40   Occupied in control unit, unoccupied in vehicle              Ter. 40   to compressor

 

 

Octane Number Coding

 

See table F0:DATA LIST, test step 25