Brake light relay

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I have a 2005 xc90 2.5 the rear brake lights are not working properly the top LED works fine but the two lower lights do not. I see that 2003 models have a blue relay in the left rear fuse panel but this one does not have any relays on that panel... Is there a brake light relay on this cars. if so where it it. can anyone help me find the problem with the lights. I call the dealer and even the dealer cannot locate it on their computers.. thanks anything will help.. Dan

[jimmy57]

There is no serviceable relay 2005 and later.
The system will shut down the transistor circuit if there is a short.

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thanks Jimmy57 I thought there was not... so there must be a short in the system.. where is the transistor circuit located if you know... is that going in directly to the computer..