Hi I have two new back up bulbs in but only one side comes on can u tell me what it might be
You should first check the bulb by swapping bulbs from one side to the other to see if you have a defective bulb. If swapping bulbs do not work then you need to check light socket wires are getting power both inside socket and the wires going into socket. You may have a bad bulb or socket. If this checks out okay then you will need to have wiring checked for a broke wire or connection.
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