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2013 Camry XLE
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There may not be a reverse light relay. Relays are typically used for high current things, starters blower motor, headlights, and such. Low current items such as reverse lights generally just have a switch, a fuse, wiring and the bulb. What is the problem that you think might be a relay problem?
 

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2013 Camry XLE
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2,820 Posts
I found a wiring diagram that shows a relay identified as "Backup LP Relay, located in "ENGINE ROOM r/b 1, LEFT SIDE 0F ENGINE COMPT".
Damn, now I gotta see if my Camry (I know yours isn’t a Camry) has one. But now I’m curious, since I do have entune with BU cam and Nav. Nothing on either fuse block says anything about a BU LP relay. Only have a 7.5amp fuse labeled BU LP.
Back to yours, it’s sounding more like a problem with the head unit triggering to the camera. And I would have no help for you there. Other than that if the back lamps work correctly and are in fact controlled by this (mythical?) relay, the relay is working. It’s usually the head unit that controls the backup cam on/off.
 
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