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2013 LS460 Electrical Issues

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Old May 31, 2025 | 11:04 PM
  #16  
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Abdulrahman7x
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Originally Posted by tammap
If you have an OBD scanner, perform a full systems scan.
Originally Posted by Anfanger
It is likely water intrusion. Did you check for error codes?
Did an OBD scan, and got these three codes:

U0073 Control Module Communication Bus off.
U0100 Lost Communication with ECM/PCM/EV.
B2427 CAN Lost Communication.



I think it has something to do with the wiring and connectors, but would really appreciate any advice.

​​​​​​​many thanks to you all.
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Old Jun 3, 2025 | 01:45 PM
  #17  
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One of common issues is a weak battery.
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Old Jun 5, 2025 | 09:58 AM
  #18  
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Originally Posted by Anfanger
One of common issues is a weak battery.
I thought that might be the issue, but I did actually change the battery and the problem is still there unfortunately.
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Old Jul 1, 2025 | 12:20 AM
  #19  
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I think I’ve found the solution, I changed the mirror switch assembly (as shown in the picture) and the problem disappeared, it’s been three days and the problem never came back!

but there is a slight difference maybe in my issue, when the issue occurred a “check headlight system” message pops in the dash, just a thing to keep in mind.

many thanks to all!
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Old Aug 6, 2025 | 07:06 PM
  #20  
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Hi all, can confirm that replacing the module indeed fixed it completely for me as well. Thank you @Abdulrahman7x !
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Old Aug 7, 2025 | 01:50 PM
  #21  
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Seems there are quite a few folks here with this problem. Surprised the dealers haven't come across it(?)
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