Jump to content
SAU Community

Recommended Posts

I recently replaced my speedo cause the other broke in my Nissan skyline r32 gtst 1993. The new speedo all works, when the car is started the power steering works fine but after a little drive for about 30 seconds if that the steering goes heavy?

I've had a read about some sensor but I have no idea where it is and what to do about it ?

Any help would be great thanks

Have you back tracked? Ie

Take the cluster back out and check all connections. Apparently the sensor is at the back of the dash and the steering angle sensor is in the column.

Put the old cluster back in and see if you have power steering back.

Process of elimination.

Check your power steer reservoir.

The sensor behind the dash is the one coming from the gearbox. It's a big round hole with a small shaft sticking out of it right behind the gauge cluster. That's where the speego gets its reading from. Funny that your speedo works but you get heavy steering as usually when that pin breaks and car no longer receives a speed signal is when you get the heavy steering.

You might have to do a HICAS diagnostic test and see what comes up.

Have you had a look at the fuses?

All I could point my finger at this point is some kind of a bad connection...

Since you're using a lock bar like me, do you have anything unplugged from hicas ecu? Silver box under the parcel tray.

To get into HICAS diags:
1) Switch ingition off, transmission in neutral or auto in Park.
2) Start engine
3) 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.
4) Drive forwards or backwards about 5 metres at a speed less than 10k/ph, this will enter full diagnostic mode.
5) 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 10k/ph, or ingnition is turned off.

Result codes:
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) Inhibititor switch input not present
(Manual) Neutral switch input not present
33 Engine speed signal not present
Edited by ErOR

The lock bar was installed by the last owner so I'm not sure but I've owned the car for about a year and never had a problem till I replaced the cluster, I'll do the diagnostics and see what happens, I did an ecu diagnostics and it was all okay

What sensor are you testing?

The item on the column behind the steering wheel is the steering angle sensor and since you've deleted HICAS I can's see it having any input.

You swapped the dash and then your troubles began so to me it's a speed sensor problem.

The actual speed sensor is just a reed switch built into the speedo right where the cable enters.

There's differences between early/late models, so could be a wiring issue.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Maybe they'll look to do a bunch of presales to help inject some cash fast for their financial issues...
    • Does it also misfire equally when revving?   Josh is very correct in what you should do. The coilpack harness wiring loom itself is a known problem due to its age and the number of heat cycles it has gone through. Throwing parts at a vehicle to diagnose the issue isn't a smart or good way to do it. Secondly, you may have a bad coil pack, you pop replacements in, they fix that issue, but messing with the harness breaks it, so the issue persists. So now you think "well it wasn't the coil packs" and have to continue chasing your tail, potentially swapping back in your shit coil packs and returning the good ones (yes, I've seen people do this because 'it wasn't the problem' and they want to save money). And suddenly, you've got two issues with the same symptoms...   Diagnose, don't use the spare parts shotgun.
    • Well the articals keep saying a Q50s (Skyline in Japan) with a new Manual gearbox. I like the talk about the new looks with the round tail lights. I hope they bring back the retro look like they did with the Z
    • Off the back of feedback we have decided to mix up this next Motorkhana at Avalon to have some targeted skills practice for beginners to advanced. Saturday 6th September 2025 8:30am Capped 26 entries Standard Entry Fee: $89 Members Entry Fee: $55 (SAU Victoria Only) Entries Close: Friday 5th February  Where: 55 beach road Avalon. https://maps.app.goo.gl/HNUE3EuNue3sJxh38 Entries: Limited to 26 entrants (Passengers allowed over the age of 14 with a signed disclaimer and same safety gear) Disclaimer: Download  Please electronically sign and email to [email protected] or print and hand in and Driver Sign In. To compete in this event you will require A valid  AASA General Speed licence or (Day license via the AASA Website for $50) MA Licenses are no longer accepted by AASA https://aasa.com.au/  A helmet, long sleeve clothing and a 1KG mounted fire extinguisher recommended (But not Mandatory). Further details within Supp Regs on the enty link. Entry Link > https://www.sauvic.com.au/entry/deca/20250906 You can bring and have a passenger in the car but they need to comply to the same safety and clothing as driver. Bring your car and get to battle others, win, lose or draw. I can guarantee you will have lots of fun. Any questions email [email protected] Entry List: 1.Anna S 2. Luke S 3. Jesse Givens-Lamb 4. Luca Stamatescu 5. Madeleine Stamatescu    
    • Wanna rewrite all of that in, say, 2 or 3 separate sentences, so that we can read it?
×
×
  • Create New...