What´s wrong with the 4ws system?

Topper80 · Post by **Topper80** » Tue Nov 11, 2014 10:35 am

Hello,

When I start the car sometimes the 4ws system works, sometimes don't and the 4ws light stays on.
Can someone help me?
Thanks

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Nov 11, 2014 10:40 am

You need to pull the fault code from the ECU. It's quite easy to do and it will tell you what's wrong.
The guide is in the service manual (which you can find in the wiki section of the forum) or I think there's a straight out guide to it also listed in the wiki section.

When it fails, if it does it straight from start up though (i.e. not when you start driving away) my money is on dry joints in the ECU - it's a common problem and basically free to fix if you're any good with a soldering iron, just a bit of a pain stripping the ECU out.

Anyway, check the code and tell us what that shows up and we can help from there.

Post by **Merlin** » Tue Nov 11, 2014 10:42 am

You need to pull the code to see what the issue is. Even with the light not illuminated the ECU will store any old codes.

See how to pull the codes here - http://www.ludegeneration.co.uk/wiki/in ... _and_codes As well as the CEL flashing the 4WS light will flash too. It is the 4WS light you need to look at.

See what the codes mean here - http://www.ludegeneration.co.uk/honda-p ... -t699.html