U1802 87 - error in vehicle speed signal

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MattSVK
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U1802 87 - error in vehicle speed signal

Unread post by MattSVK »

Hello there,

I am seeking another help to fix fault that is always coming back after deleting ...

U1802 (error in vehicle speed signal - invalid data received)

Everything is working fine like speed on the DashBoard computer and HeadUp Display so I really don't know where to look to fix this fault. Any ideas where to look ?? Thank You in advance.

Matt
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Huskyxantia
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Re: U1802 87 - error in vehicle speed signal

Unread post by Huskyxantia »

What car have you got ? This sort of fault could be one of your sensor rings worn more than another .
Husky. :? Thinking outside of the box is better than sitting in a dark one.
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MattSVK
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Re: U1802 87 - error in vehicle speed signal

Unread post by MattSVK »

Sensor rings situated where?
Anyway I have this problem with "Parking assistance"

Peugeot 508 2.0 133kw GT 2017
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Huskyxantia
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Re: U1802 87 - error in vehicle speed signal

Unread post by Huskyxantia »

There part of the wheel hubs
Husky. :? Thinking outside of the box is better than sitting in a dark one.
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Huskyxantia
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Re: U1802 87 - error in vehicle speed signal

Unread post by Huskyxantia »

Could it be possible that the parking sensors are or have somehow gone to earth ?
Husky. :? Thinking outside of the box is better than sitting in a dark one.
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MattSVK
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Re: U1802 87 - error in vehicle speed signal

Unread post by MattSVK »

Parking sensors are working fine sometime I have error with one sensor... Later on I will test them with Diagbox to see If every single one is working.
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DaveFix
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Re: U1802 87 - error in vehicle speed signal

Unread post by DaveFix »

Hi Matt,

I occasionally have this error and a BSI error regarding the immobiliser not unlocking - though I've never noticed an actual problem with either.

Did you find what was causing your error?
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Huskyxantia
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Re: U1802 87 - error in vehicle speed signal

Unread post by Huskyxantia »

Shot in the dark, when was the cam belt changed ? Is or are the pick up reluctor ring on the bottom pulley gear ok or the crank sensor not breaking down , my theory this detects the spinning of the engine, maybe if these are at fault then it could possibly make another sensor look like its breaking down when really it isnt , just a theory, some of my theory's have for me sometimes giving the answer. It might not be your issue but just thought id pop my head thought here.
Husky. :? Thinking outside of the box is better than sitting in a dark one.
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DaveFix
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Re: U1802 87 - error in vehicle speed signal

Unread post by DaveFix »

Good suggestion, though if there was a fault with the device which detects vehicle speed, I would expect lots of other errors including ABS and ESP which I assume also depend on vehicle speed data.
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Huskyxantia
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Re: U1802 87 - error in vehicle speed signal

Unread post by Huskyxantia »

Possible , but its french ....
Husky. :? Thinking outside of the box is better than sitting in a dark one.
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Pimpex
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Joined: 30 Mar 2025, 07:34

Re: U1802 87 - error in vehicle speed signal

Unread post by Pimpex »

Hello! I have an issues with parking sensors. Also I check do faults by diabox and got this.
U1802 87
U1805 87 any ideas ?
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