Hi there, I have an issue with my left turn signal. It gives me the fast blinking mode and the lights outside don't flash. The bulb in the front works fine since this is the same one that my parking lights use, but it doesn't blink. The right side works perfectly fine. After a few diagnostics I made I came to the conclusion that it could be a problem with the bcm. This is because whenever I reset my BCM (either by disconnecting my battery or by unplugging the bcm) the blinkers work fine. But after sometime they go bad again. I am not sure why it does this.
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Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your Versa.
From what you've described, the issue could be related to the body control module (BCM) if resetting it temporarily resolves the problem. The BCM controls various electrical functions in the vehicle, including the turn signals. If it's malfunctioning, it could be causing the left turn signal to behave erratically, even if the bulbs are fine. You might also want to check the wiring and connectors associated with the BCM for any signs of damage or corrosion, as these can cause intermittent issues. Even though the bulbs seem good, replacing them could be an inexpensive first step in this diagnosis.
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