I have some electrical gremlins. My symptoms is the instrument cluster while driving goes dead and then comes back and sometimes flutters.

Then it comes partially back on, fuel gauge take a little while longer to kick on.

Videos of symptoms

Electrical issue - Google Drive

drive.google.com

So I am checking all the grounds points today off the main wiring harness. I did have some major leaks in due to drainage tubes in sunroof. changed all drainage tubes and sunroof track, problem solved. Wondering if this issue is somehow related. Here are the codes from the Gap IID tool its throwing, when it happens. B1A00-48. cant find any reference anywhere. Could it be BCM unit? All ECU Software up to date except Transmission. I am not updating that because it is working fine.

I did add a trailer wiring harness recently and when i connect it to trailer it pulses/flashes every 2 seconds. it was a genuine harness. I may just need to update CCF config, will test that too.

I did leave the sunroof open once too and it rained and I change shifter.

I have a AXCESS wiring kit for after market radio, but doubt that is the issue. i do see the U0184-87.


What I have done;

1. I have changed the battery and alternator to brand new. Voltage was fine from battery and alternator before and now
2. Visually inspected the Engine Control Unit behind the battery in engine compartment and in the 2009 model it is sealed in plastic rubber compartment. It was like brand new. I cleaned it anyway with electrical contact cleaner.
3. Hard reset-What I will Try- Instrument cluster rebuild likely cause-






-R&c[0]=AT0DksbVw3mayG1YOSLtpiW_E63aqOpAMvuKvX8HcS_6noWsJ-Cq-KMIJ2iw5Ez9UCxpgJog09oMNmLXA7FC9Dhrp-jfCwAp2YMF9cmWXuSLLKih97Y_m7zD3QIuXQq5t1-nRQxVlleByaN8voqfX-0IFLIw]https://www.youtube.com/watch?v=Q0NYMQOa7Ss







L320 - Range Rover Sport 2009
Vehicle scanned on 16-01-2021 11:44
Using IIDTool BT V4.0 B2742

Instrument Pack

• U0184-87 (27) Lost communication with audio unit - Bus signal/message failure - missing a message
  ( on 16-01-2021 11:18:32 at 104018 mi )
• B1A75-92 (26) Fuel sender 1 circuit - Component failure - performance or incorrect operation
  ( on 16-01-2021 11:38:32 at 104023 mi )
• B1A76-92 (26) Fuel sender 2 circuit - Component failure - performance or incorrect operation
  ( on 16-01-2021 11:38:32 at 104023 mi )
• B1A00-17 (26) Control module - General electrical failure - circuit voltage above threshold
  ( on 16-01-2021 11:37:32 at 104023 mi )
• B1A00-48 (26) Control module - System internal failure - supervision software failure
  ( on 16-01-2021 11:37:32 at 104023 mi )

Steering Angle

• C0051-62 (2E) Steering wheel position sensor - Algorithm based failure - signal compare failure
  ( on 16-01-2021 11:37:56 at 104022 mi )

Transfer Case

• U3003-62 (2E) Battery voltage - Algorithm based failure - signal compare failure
  ( on 16-01-2021 11:37:56 at 104022 mi )

I did get my hands on an electrical reference guide I wanted to share.

Range Rover Sport Electrical Reference 2005-2009.pdf

drive.google.com

 

Hey HSE-RRS-09 were you able to figure out what was wrong? My issues are similar to you and I just bought the vehicle too. Just so happens to fail the next day smh. I was thinking about sending it in to get it repaired was wondering if you did that?

 

I have the same issue in the same codes. The cluster goes dark usually on cold days and comes back once the engine is warmed up. I’m thinking about unplugging modules one by one to see if one of the faulty modules is messing with the can bus.

 

Hi guys, having pretty much the same issue .. any update on this?

 

Yes, I was able to fix it. I took my cluster off (easy to do yourself, there's videos on YouTube) and sent it to
https://clusterfix.net/store/product...luster-repair/
They were able to fix it. Haven't had a problem since.