Have Volvo Questions? Ask a Volvo Mechanic for Answers ASAP
My name is ***** ***** I am a Volvo dealership technician. I am going to try to help with your question today. This is likely a problem with the Rear Electronic Module, or REM, which is what sends the power signal to the brake lights. The power signal to the two outer lights is separate from the one to the center brake light. To verify this, you will need to first check for power to both bulbs. Power comes to the taillight assembly via a yellow wire. If there is no power, you will need to check for power coming out of the REM at connector B, terminal 3. If there is no power, the REM is faulty and will need replacement. The REM is located behind the access panel on the left rear of the cargo area.
There are two 32-pin connectors, A and B. B is the one closest to the rear of the vehicle.
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