HICAS Diagnostics

[Squeak]

HICAS Diagnostic Mode
There is a HICAS warning light in the instrument cluster. If it comes, on it is indicative of a problem.

R32: Check the HICAS oil level (power steering reservoir in some models, or a remote reservoir accessible from the boot)

R32 and R33: Check all HICAS electrical connections, and if the light remains on, follow the diagnostic below.

Note that having an aftermarket steering wheel fitted without the appropriate HICAS boss adaptor can also cause the HICAS system to show a fault.

Switch ignition off, transmission in neutral or auto in Park.

Start engine

Very quickly (with a couple of seconds), turn the steering wheel left and right about 20 degrees from centre five times, and then pump the brakes five times, then press the brake pedal once more this will enter diagnostic mode.

Drive forwards or backwards about 5 metres at a speed less than 10km/hr, this will enter full diagnostic mode.

The HICAS light in the instrument cluster will be flashing quickly (for normal) or will flash a code indicating any problems.

Long flash = first digit, short flash = second digit.

Diagnostics will return to normal after five minutes, or any speed over 10km/hr,
or ignition is turned off.


HICAS Diagnostic Codes 1989-1993
1 HICAS solenoid right hand
2 HICAS solenoid left hand
3 Cut off valve
4 Power steering solenoid
5 Vehicle speed sensor
6 Steering angle sensor
7 Neutral position sensor
8 (Auto) Parking brake sensor, (Manual) Clutch sensor
9 (Auto) Inhibitor switch, (Manual) Neutral sensor


HICAS Diagnostic Codes 1993-1999
11 HICAS control unit
12 HICAS motor power supply not present
13 HICAS motor output not present
21 Vehicle speed sensor not present
22 Steering angle sensor not present
23 Steering angle sensor neutral or not present
24 Rear main sensor input not present
25 Rear sub sensor input not present
31 Parking brake sensor input not present
32 (Auto) Inhibitor switch input not present; (Manual) Neutral switch input not present
33 Engine speed signal not present

[MR Y]

has anyone ever tried this and succeeded? I've now given up. The neighbours must think I'm deranged, wildly turning steering wheel and driving up and down and its getting me nowhere.

[Moff]

Nice info Adam

[MR Y]

Originally Posted by Moff

Nice info Adam

???
Have you tried it?

[Moff]

Originally Posted by MR Y

???
Have you tried it?

No, I don't have Hicas..

(Apologies for delay in responding, I've been away from my desk )

[Squeak]

Surely this wouldnt work if you don't have the standard ECU? that may be your problem?

[Moff]

Originally Posted by Squeak

Surely this wouldnt work if you don't have the standard ECU? that may be your problem?

I haven't tried it.. leave me alone

[Squeak]

haha I meant Steve

[MR Y]

I have the e-manage (piggyback) so still got standard ecu. It definitely wont flash for me in the instrument cluster, I've now given up!

[TriniGT]

Check and make sure your light isn't blown as well.