Purpose of contacts of the injection system ECU (K4M and F4P) (Renault Laguna 2)

H2 - signal from the accelerator pedal position sensor (conductive path 1).
H3 - "ground" of the accelerator pedal position sensor (conductive path 1).
H4 - "ground" of the power circuit.
G2 - power supply for the accelerator pedal position sensor (conductive path 2).
G4 - "ground" of the power circuit.
F2 - power supply for the accelerator pedal position sensor (conductive path 2).
F3 - Accelerator pedal position sensor signal (conductive path 2).
F4 - "ground" of the accelerator pedal position sensor (conductive path 2).
E4 - brake signal.
B4 - diagnostics.
C4 - information about the position of the clutch pedal.
A2 - on-off switch for the speed controller.
A3 - multiplex communication CAN L with the UCH.
A4 - multiplex communication CAN H with the UCH.
C3 - speed limiter on/off switch.
D2 - power supply for the speed controller and speed limiter controls.
D3 - signal from the speed controller and speed limiter controls.

M2 - control input of injector 4.
M3 - control of the "-" throttle valve with servo drive.
M4 - control of the "+" throttle valve with servo drive.
L2 - control input of injector 3.
L3 - control input of injector 2.
L4 - control input of injector 1.
KZ - multiplex communication CAN L (on cars with automatic transmission).
K4 - multiplex communication CAN H (on cars with automatic transmission).
H2 - power supply for the absolute pressure sensor.
NC - absolute pressure sensor signal.
H4 - power supply for the absolute pressure sensor.
G2 - power supply for the throttle position sensor.
G3 - servo-driven dampers.
G4 - position sensor signal (conductive path 1) throttle body with servo drive "ground" of the throttle body position sensor with servo drive.
F2 - information about the coolant temperature.
F3 - crankshaft speed sensor signal.
F4 - ground of the coolant temperature sensor.
E2 - information about air temperature.
EZ - air temperature sensor "ground".
E4 - signal from the crankshaft speed sensor.
D3 - position sensor signal (conductive path 2) throttle valve unit with servo drive.
D4 - control of actuator relays.
C2 - knock sensor screen.
82 - "ground" of the knock sensor.
A2 - knock sensor signal.
A4 - "+" after ignition switch.
C4 - signal from the power steering pressure relay.

A2 - signal from the lower oxygen sensor.
B2 - "ground" of the signal from the lower oxygen sensor.
81 - signal from the upper oxygen sensor.
C1 - "ground" of the signal from the upper oxygen sensor.
D1 - fuel pump relay control.
E1 - control of the electromagnetic valve for purging the absorber.
F2 - control of the high-speed relay of the electric fan of the engine cooling system.
F1 - control of the low-speed relay of the electric fan of the engine cooling system.
G3 - control of heating of the lower oxygen sensor.
G2 - power supply "+" after the relay.
G1 - control of heating of the upper oxygen sensor.
NC - control of ignition coils of cylinders 2 and 3.
H2 - control of ignition coils of cylinders 1 and 4.
H1 is the "ground" of the power circuit.
E2 - camshaft phase regulator control (only on F4P engine).