IACV (Idle Adjust Control Valve)
  
PIN
Colour
Tracer
Function
Signal
Destination
1
K
B
 Stepper 3 (Gnd switched by ECU)
 DC
 ECU(Red) Pin 33 
2
N
K
ECU Controlled +12V
DC
MFRU Out Pin 3
3
 O
S
Stepper 4 (Gnd switched by ECU)
DC
 ECU(Red) Pin 34
4
 O
G
Stepper 1 (Gnd switched by ECU)
 DC
 ECU(Red) Pin 10
5
    
Not Connected
    
6
O
B
Stepper 2 (Gnd switched by ECU)
 DC
ECU(Red) Pin 15