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ABS and 4WS light on??
- wurlycorner
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The abs ecu is buried inside the rear quarter panel. Don't test it from there, that's unnecessary aggro, just test the sensors from the 2 pin orange plugs in the engine bay. It will be the sensor leads that have failed, not the loom part (unless your name is thebusofwoe and a mouse has been at your car!
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Iain.
Iain.
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- wurlycorner
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Thanks - I'll give it a go tomorrow. But tell me - if I'm getting that 4 1 error code won't the resistance test merely confirm that there's a problem with the sensor? I saw a post that taking it off and giving it a clean could be a solution before forking out for a new one. These Preludes are so unreliable - I've had this one from new in 1996 and a sensor has gone already after just 19 years!! Mind you, this is the first non-consumable problem apart from a rusty sunroof which I replaced.
- wurlycorner
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Yep, they're terrible aren't they - outrageous that something like should fail after 19 years!
The theory behind the cleaning is that a build up of crud prevents the sensor from picking up the 'teeth' on the drive-shaft as they rotate past.
The resistance check will tell you if the sensor is electrically healthy or not. Cleaning has no effect on this as you say - so if it fails resistance test, then the sensor is definitively knackered. (No amount of cleaning will help and you will need to replace it...)
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Iain.
Iain.
Super Secret 1G (not really super secret!)
- wurlycorner
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- Prezzasprel
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Re: ABS and 4WS light on??
I’m on my fourth prelude now, all of them UK 2.2vtec 4th gen manuals. All of them have previously had the ABS light on...followed by the 4WS light 50 yards after. Standard stuff for a lot of us.raysmith48 wrote:Only ABS light on - 4WS ok
Paper clip test show 4 1 - so looks like the front right speed sensor.
Time to get it out and test it.
My current prelude however has the ABS light coming on after 10 yards, but no 4WS light..? The 4WS is continuing to work oddly, which to me means that it’s not the usual ABS/read sensor that’s notorious for malfunctioning.
Anyone encountered the same scenario??
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