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Multiple BCM DTC’s on 2005 LR3 HSE

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Old Oct 2, 2023 | 04:53 PM
  #1  
dlbarnardii's Avatar
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Default Multiple BCM DTC’s on 2005 LR3 HSE

I have a 2005 LR3 HSE with over 315,000 miles on it. I have the following BCM DTC’s: 1A93, 1B02, 1B69, 1C09, 1C10, 1C26, 1C32, 1C34, 1C57 and 1D12. The only issue I can find is that my sunroof is no longer working as of yesterday. I am also getting a “Fail to Complete Erase Operation” when trying to clear the codes.

FYI - I replaced a bad (for weeks) Brake Light Switch today which had been throwing off a number of codes recently. Only other issues are known and soon to be fixed misfire/too lean codes, a PACM (parking assist control module) 1B50 code (rear left inner sensor) which I’m not too sure about and a number (9) of Ride Level Control Module Codes which really aren’t an issue since I replaced my EAS with coil system 3 years ago.

Thoughts on what’s causing all these BCM codes and how I can get my sunroof working again?

Thanks
 
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Old Oct 3, 2023 | 05:21 PM
  #2  
houm_wa's Avatar
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Joined: Apr 2009
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From: North of Seattle
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You're going to need a more legit code reader. Those DTCs do not look recognizable. For the sunroof, try the recalibration procedure. Ignition on, hold the switch to "open" for 30s....I think it's 30s, anyway. It's in the manual. TIME it. 30s is longer than one might think.
 
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