Assignment of Control Unit Plug Opel Vectra A

Terminal Assignment

Terminal Assignment - Control Unit Plug

To detach wiring harness plug from control unit, release metal retaining clips.

The terminal identification markings are under the plastic retaining clips.

Small 24-pin plug:

A 1 Voltage of control unit K 57 switched to fuel pump relay K 58/Ter. 86

A 2 Ground

A 3 Unoccupied

A 4 Unoccupied

A 5 Ground for engine telltale H 30 or Diagnostic Plug X 13/Ter. E

A 6 Voltage supply for control unit K 57 from Ter. 15

A 7 Unoccupied

A 8 Unoccupied

A 9 Excitation lead Ter. B of Diagnostic Plug X 13

A 10 Signal line of odometer frequency sensor P 14/Ter. 2

A 11 Ground lead of vacuum sensor P 23

A 12 Output stage ground of control unit K 57

B 1 Permanent voltage supply for fault memory

B 2 Unoccupied

B 3 Ground for distributor Y 24

B 4 Unoccupied

B 5 REF signals of distributor Y 24

B 6 Unoccupied

B 7 Unoccupied

B 8 Unoccupied

B 9 Unoccupied

B 10 Signal line P/N switch

B 11 Unoccupied

Large 32-pin plug:

C 1 Unoccupied

C 2 Unoccupied

C 3 Lead to first coil of servo motor M 33/Ter. B

C 4 Lead to first coil of servo motor M 33/Ter. A

C 5 Lead to second coil of servo motor M 33/Ter. C

C 6 Lead to second coil of servo motor M 33/Ter. D

C 7 Unoccupied

C 8 Unoccupied

C 9 Unoccupied

C 10 Signal line of coolant temperature sensor P 30

C 11 Signal line of intake manifold pressure sensor

C 12 Octane number plug (not in case of C 13 N engine)

C 13 Signal line of throttle valve potentiometer P 34

C 14 Voltage supply for throttle valve potentiometer P 34/Ter. A, CO potentiometer R 15/Ter. 1 and intake manifold pressure sensor P 23/Ter. C

C 15 Unoccupied

C 16 Voltage supply for control unit K 57

D 1 Output stage ground

D 2 Ground for throttle valve potentiometer P 34/Ter. B

D 3 Unoccupied

D 4 EST signal (ignition) of distributor Y 24/Ter. A

D 5 Control unit ground switched to distributor Y 24/Ter. C

D 6 Ground for oxygen sensor (not E 16 NZ engine)

D 6 Ground for CO potentiometer R 15/Ter. 3 (only E 16 NZ engine)

D 7 Signal lead of oxygen sensor (not E 16 NZ engine)

D 8 Signal lead of CO potentiometer R 15/Ter. 2 (E 16 NZ engine only)

D 9 Regulates current to injection valve Y 32

D 10 Regulates current to injection valve Y 32

D 11 Unoccupied

D 12 Unoccupied

D 13 Unoccupied

D 14 Unoccupied

D 15 Unoccupied