Injection system ECU pin assignment (L7X) (Renault Laguna 2)

AZ - power supply for the absolute pressure sensor.
82 - power supply for the speed controller and speed limiter controls.
83 - absolute pressure sensor signal.
SZ - "ground" of the absolute pressure sensor.
C4 - air temperature sensor power supply.
D1 - oil temperature sensor signal.
D2 - power supply for the coolant temperature sensor.
D3 - coolant temperature sensor signal.
D4 - air temperature sensor signal.
E1 - signal from the lower oxygen sensor of the rear cylinders.
E2 - signal from the upper oxygen sensor of the rear cylinders.
EZ - signal from the lower oxygen sensor of the front cylinders.
E4 - signal from the upper oxygen sensor of the front cylinders.
F1 - - "ground" of the signal from the upper oxygen sensor of the rear cylinders.
F2 - "ground" of the signal from the lower oxygen sensor of the rear cylinders.
F3 - "ground" of the signal from the lower oxygen sensor of the front cylinders.
F4 - "ground" of the signal from the upper oxygen sensor of the front cylinders.
G1 - signal from the speed controller and speed limiter controls.
G2 - control of ignition coil of cylinder 6.
G3 - control of ignition coil of cylinder 5.
G4 - control of ignition coil of cylinder 4.
H1 is the "ground" of the power circuit.
H2 - control of ignition coil of cylinder 1.
NC - control of ignition coil of cylinder 3.
H4 - control of ignition coil of cylinder 2.
A2 - multiplex communication CAN L (engine).
C2 - multiplex communication CAN H (engine).

A1 - Accelerator pedal position sensor signal (conductive path 1).
A2 - Accelerator pedal position sensor signal (conductive path 2).
AZ - "ground" of the accelerator pedal position sensor (conductive path 2).
81 - pedal position sensor power supply (conductive path 1).
82 - brake light switch signal.
84 - "-" after ignition switch.
C1 - speed limiter on/off switch.
EZ - signal from the power steering pressure relay.
H1 - power supply for the accelerator pedal position sensor (conductive path 2).
H2 - diagnostics.
J4 - control of the low-speed relay of the electric fan of the engine cooling system.
K1 - "ground" of the accelerator pedal position sensor (conductive path 1).
K4 - control of the high-speed relay of the electric fan of the engine cooling system.
L1 - on/off switch for speed controller.
L4 - "ground" of the power circuit.
M4 - "ground" of the power circuit.
NC - multiplex communication CAN L with the UCH.
H4 - multiplex communication CAN H with the UCH.

A1 - signal from the front cylinder knock sensor.
A2 - "ground" of the front cylinder knock sensor.
AZ - signal from the knock sensor of the rear cylinders.
A4 - "ground" of the knock sensor of the rear cylinders.
81 - "ground" of the camshaft position sensor of the front and rear cylinders.
82 - power supply for the camshaft sensor of the front and rear cylinders.
83 - position sensor signal (conductive path 1) throttle valve unit with servo drive.
84 - position sensor signal (conductive path 2) throttle valve unit with servo drive.
C1 - signal from the front cylinder camshaft position sensor.
C2 - signal from the rear cylinder camshaft position sensor.
SZ - "mass" of the position sensor (conductive tracks 1 and 2) throttle valve unit with servo drive.
C4 - +5V power supply for the position sensor (conductive tracks 1 and 2) throttle valve unit with servo drive.
E1 - control of the actuator relay.
E2 - signal from the crankshaft speed sensor.
EZ - signal from the crankshaft speed sensor.
F1 - control of the phase regulator of the camshaft of the rear cylinders.
F4 - control of the electromagnetic valve for purging the absorber.
G1 - control of the phase regulator of the camshaft of the front cylinders.
114 - power supply for injectors.
J3 - control input of injector 2.
J4 - control input of injector 4.
K1 - control input of injector 1.
K2 - control input of injector 6.
KZ - control input of injector 3.
K4 - control input of injector 5.
L1 - control of heating of the upper oxygen sensor of the front cylinders.
L2 - control of heating of the lower oxygen sensor of the front cylinders.
L3 - power supply "+" after the relay.
L4 - control of the "-" throttle valve with servo drive.
M1 - control of heating of the upper oxygen sensor of the rear cylinders.
M2 - control of heating of the lower oxygen sensor of the rear cylinders.
M3 - control of "+" throttle valve with servo drive.
M4 - "mass" of power circuits.