I dont know if this is helpful to other members but I will post it anyway:
HICAS TEST
start car in neutral with the steering wheel in the centre, starting from centre, turn the steeing wheel 20deg (about 10 and 2 o-clock)
left (10)
right
left
right
left
then to centre.
pump the breaks 5 times (do NOT hit the break at any time before this or it will disable hicas test mode). Hicas light will come on and the rear wheels will move when you turn the steering wheel.
Put the car in drive (a/t) or first (m/t). Drive slowly foward (under 10kph) in a straight line. 1 of 2 things will hapen after about 10m, 1 the hicas light will flash fast, this indicated all ok and NO faults found. The other is that it will flash a code if a fault is found. The r33 onwards has 2 flashes for the code, the long flash is first digit, short flash is second digit. Codes are…
R32
1- hicas solenoid right
2- ‘’ ‘’ ‘’ ‘’ left
3- cut off valve
4- power steering solinoid
5- speed sensor
6- angle sensor
7- neutral position sensor
8- park break sensor (a/t) or clutch sensor (m/t)
9- inhibit switch (a/t) or neutral sensor (m/t)
R33+
11- hicas control unit
12- ‘’ ‘’ motor power supply awol
13- ‘’ ‘’ ‘’ ‘’ output not present
21- speed sensor
22- steering angle sensor awol
23- " " " " " " " " or neutral
24- rear main sensor input awol
25- " " sub sensor " " " "
31- park break sensor awol
32- inhibit switch (a/t) or neuteral switch awol (m/t)
33- engine speed signal awol.