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I have a few modules complaining that they sporadically lose communication with the parking brake control module. It appears to function correctly and no warning lights are present - just this code coming up:

U0128 - Lost Communication With Parking Brake Module

On a few forums I have read about instances where these modules became waterlogged and had to be replaced. I'd like to see if water is possibly causing this issue and stop it before it kills the module outright.

This is a 2010 RR HSE full size for reference. Thanks in advance for helping me locate this module :)
 

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The PBM is mounted above the rear differential. Although you can “touch” it, it can’t be removed without dropping the rear subframe about 4-5 inches.

The electrical connector plug is attached from the left side of the vehicle.

It’s easier to see/unplug/remove the plug with the left rear wheel liner removed.

Rob
 
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