Discovery LR3 Comms Fault- Bus Signal B00D2

Andrew Kiwi

New member
Greetings Tech Brothers, Could I kindly speak to an intelligent life form with grey hair and wrinkles who worked on these things in 2005 to 2009 please?
Fault- B00D2 - Restraint System Malfunction Indicator 1
History - Flood in left side foot well- front and rear of a Righthand drive LR3 Tool -ICARSOFT LV2 Landrover scanner-real time results.
 

Roverman2010

Well-known member
Dry it out good and check any wires and connections. Is this a history code or new. Usally not an issue on the left side. Reach out to D3 forum as well.
 

Andrew Kiwi

New member
Hi guy ,
Thank you for your response.
This fault is a very tricky one that tests your intellect.
Heres a quick brake down of comms fault.
The SRS readout on right of the dash is active .
Air Bag light is lit to "40% only."
All resisters inside the Airbag circuit are of similar value
All steering buttons work ok.
Sky light leaked
Un plugged rectangle plugs front seat only and cleaned with CRC Contact cleaner and re fixed retainer hex screw.
Fault returned after clearing error with Icarsoft tool , but returned again after restarting Car.
So Lads,
I am wondering about the following .
1 . Does a faulty leaky drain leak onto a central fuse box somewhere around front passengers foot well, providing power to the SRS restraint circuit ?
2 . Dimly lit Air bag light might mean low power from fuse box to RCM restraint module activating a comms error alarm?
3 . an Earth point or Earth common connectors somewhere in floor or sill area that may have water damage .
4 . How to test safely -the cambus signals across the various points of th SRS circuit.

What would be really awesome to see some pictures of the Earth points - Connectors relating to Airbag Circuit - RCM Module removal - Door Airbag hing Plug - Fuse bank and anything you have.
Thanks Lads .
Wife has given notice that the Dog house has been prepared for me, and the Dog gets my bed if this
problems not fixed .
The Pressure is ON.
 

jymmiejamz

Founding Member
Callsign: KN4JHI
The restraints control module is located under the center console. If the sunroof was left open, the module may have gotten wet. Remove the center console and inspect the module for corrosion. Disconnect the battery before touching the module.
 

rocky

NAS-ROW Addict
Lets not forget once you safely depower the vehicle to go first to the connections to the passenger seat, the seat belt reel itself with its pre tensioner, etc. All these items are probably not designed to get submerged in water.

Just pulling the trim out wont be fun. I consider it one of the dark arts of vehicle repair.....
 
Top