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Heated Steering Module - PCB Differences
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MintyHit
 


Member Since: 25 Jul 2017
Location: Bradford on Avon
Posts: 227

United Kingdom 2005 Discovery 3 4.4 V8 HSE Auto Java BlackDiscovery 3
Heated Steering Module - PCB Differences

Hi All,

This might be a lost cause but I am hoping there might be some electronics engineers on here than can help. I am out of my depth.

I am trying to get my heated steering to work... I have all the correct parts other then the module which is an old one from an L322 which is not compatible.... the question is why?

This is the wiring for the old one (L322) which I have:

Click image to enlarge


.. and a picture of the PCB:



2pin connector = +12v and Ground for the Module
4pin connector = +12v and Ground and 2x sensor wires to wheel

3pin connector = ? - According to the the wiring it should just be pin-out for a push-button and a tell tale LED.

The newer compatible one looks like this:



... and the pinout for the three pin connector is this:

Click image to enlarge


So what's the difference with these two modules? I've been told the newer one just needs a grouding of the blue wire to work and the yellow and green are for the LED.
  
Post #215336212th Jun 2020 1:03 pm
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geoffsnook
 


Member Since: 13 Jun 2014
Location: south wales
Posts: 3169

Wales 

What year is the L322 i have heard the can speeds are different on a few module's and that is why they will not work as they don't speak may not be the reason for your'e but a few Thumbs Up
 Discovery 3 se gone
Range rover sport supercharged here:) 
 
Post #215338612th Jun 2020 2:10 pm
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Ians63
 


Member Since: 10 Nov 2019
Location: Montrose
Posts: 49

United Kingdom 2006 LR3 TDV6 HSE Auto Zermatt SilverLR3

PM on the way
  
Post #215343812th Jun 2020 4:37 pm
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MintyHit
 


Member Since: 25 Jul 2017
Location: Bradford on Avon
Posts: 227

United Kingdom 2005 Discovery 3 4.4 V8 HSE Auto Java BlackDiscovery 3

Thanks so much Ians!!!

Replied
  
Post #215344112th Jun 2020 4:50 pm
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