No 4ws light. Not the usual issue

[Animal Mother]

check the track to the bulb hasnt been cut

All tracks on the back of the instruments are fine.

[Animal Mother]

Is there another fuse I should be looking for? The radio fuse has been mentioned elsewhere.

[Vtecmec]

Is the ECU actually plugged in? It may have been unplugged as a way of disabling the system? If it is, check to see if it has power going to it.

[Merlin]

It certianly wont casue any harm to look over both the fuse boxes to see if any fuses have blown.


Can you answer these questions to clear up what you have or havent tried?

Is the 4WS unit present under the rear of the car?
Is the 4WS ECU in the boot behind the side cover?
Has the dash bulb been replaced with a known working bulb?
When driving the car slowly (lower than 10mph) and turn at full lock, does the rear wheels turn at all?
Is the ABS light on?
Have you pulled the ABS codes? as im sure the ABS shares some sensors with the 4WS

[Animal Mother]

It certianly wont casue any harm to look over both the fuse boxes to see if any fuses have blown.


Can you answer these questions to clear up what you have or havent tried?

Is the 4WS unit present under the rear of the car? - Yes.
Is the 4WS ECU in the boot behind the side cover? - TBC
Has the dash bulb been replaced with a known working bulb? - Yes. Tested as working.
When driving the car slowly (lower than 10mph) and turn at full lock, does the rear wheels turn at all? - TBC
Is the ABS light on? - On at ignition and turns off as it should.
Have you pulled the ABS codes? as im sure the ABS shares some sensors with the 4WS - No ABS error (see above)

[Merlin]

When seeing of the rear wheels do turn, a good way of doing it is try and reverse park and angle the passenger wing mirror down. That way you can see the passenger rear wheel turning. Thats also my parking technique

Or dive forward slowly and hang out of the drivers door

[Donald]

When seeing of the rear wheels do turn, a good way of doing it is try and reverse park and angle the passenger wing mirror down. That way you can see the passenger rear wheel turning. Thats also my parking technique

Or dive forward slowly and hang out of the drivers door

I do that parking as well very handy.

Just to note as well, when you turn full lock to get the rear wheels to turn, if you get out and leave the car running the rear wheels actually reset to forward position after a while. So don't turn full lock and faff around inside for ages if you're gonna get out to look, cos you might miss it

[Animal Mother]

UPDATE

And then there was light, and I did see it, and it wasn't good.

Pulled the ECU out of the boot. The previous wanker owner had snipped two wires, crossed one set over and rejoined them and then pulled the plugs out of the ECU.

As you can see from the photos below, hopefully, the grey/white and grey/black wires were snipped. Two of them (not the same ones) were then rejoined (under the black tape), the other were just left hanging. Any ideas what the cables are for?



Once I botched a quick repair, and did the paperclip trick I recorded the error code. I think it's an error 20. What do you think?


I did the reset and it worked, temporarily. I can turn the wheels to left lock but when I turn them even 45 degrees to the right I get the 4ws light come back on immediately. I tested the 4ws to the left after reset and it worked beautifully.




What do the collective think the problem could be?

Could it be the sensor on the steering wheel boss?

Could it be anything else?

Where/what is the front sub-steering angle sensor, where is it and could there be an easy fix?

[mercutio]

its behind the steering wheel on the column

[Animal Mother]

its behind the steering wheel on the column

That's the main steering angle sensor.