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UCH Question
- Thread starter tomhunt85
- Start date
Hmm, i'm not 100% sure but iirc you can't just try another cars UCH like that as their coded to the car and part of the immobisiler and once they've been coded they can't be uncoded or swapped about. Having said that the basic functions of it still might work just the car wouldn't start.
You need a new UCH from renault (about £200 iirc) and then an hours labour or someone with a CLiP to code it to the car.
You need a new UCH from renault (about £200 iirc) and then an hours labour or someone with a CLiP to code it to the car.
as above they're coded and lock them selves out if thy're tried somewhere else.
Yeah i'd say thats about a good ballpark figure.
Look under the passenger side of the dash, the black box with several relays and lots of wires going to it is the UCH. Its a PLC pretty much (basic computer) that controls pretty much all of the auxaillary electrical systems (ie. lights, wipers, climate control). The stalks and switchs are connected to the UCH which is then connected to the devices to give the desired function and allows for things like the auto wipers and lights to the controlled (when it works! lol).
Its also an essential part of the 2nd generation renault immobilser.
In short a very important piece of the car.
Its the computer which runs all the other computer and runs the electrics in the car.
Less
Shameless... 
UCH
The UCH (Universal Car Harness) is an electronic control module that is fitted to many late model Renaults (early 2000's onwards.) It is responsible for controlling many of the non-engine related functions of the car, such as central locking, electric windows, and even some of the lights (e.g. indicators.)
A brand new UCH is supplied with a blank memory. This must be coded (using the Renault Clip computer) to match the serial number of the ECU and key/card before it will work with the car. The memory can only be written once, so a used UCH cannot be taken from a donor vehicle to be used in another unless the ECU and keyfobs/cards are also transferred.
UCH
The UCH (Universal Car Harness) is an electronic control module that is fitted to many late model Renaults (early 2000's onwards.) It is responsible for controlling many of the non-engine related functions of the car, such as central locking, electric windows, and even some of the lights (e.g. indicators.)
A brand new UCH is supplied with a blank memory. This must be coded (using the Renault Clip computer) to match the serial number of the ECU and key/card before it will work with the car. The memory can only be written once, so a used UCH cannot be taken from a donor vehicle to be used in another unless the ECU and keyfobs/cards are also transferred.
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