How many volts is a reverse light?
12 volts
The reverse light circuit of a vehicle will have 12 volts on it when the vehicle is put in reverse. You would want to be careful using this circuit to power just anything though as it does have an amp rating that if you exceeded would blow a fuse. Quick splice connections can sometimes be hit or miss.
How many volts does a reverse camera use?
+12 V
When a reverse camera is connected via a video interface, it is activated through a CAN bus or using the +12 V from reversing lights lamps.
What to do if your reverse light switch is bad?
If you do find that the SJB relay is bad and the reverse lamp switch is good, you can definitely wire an external relay to the existing reverse lamp switch. * Remove the F29 fuse and check which side of the fuse connector has +12V when the ignition is in the RUN position.
Where is reverse light not activated put in reverse gear?
I would start with tracing the wiring from the bulb back to the switch which will be located on the top of the transmission if the wiring is good it is probably the switch. The best way to check both would be with a good volt ohm meter, the switch will be open when not in reverse and closed when in reverse that’s where I would start anyway
Why are my reverse lights not working on my Ford truck?
We are running a similar canbus system on these trucks, maybe wiring the leds directly into the reverse wiring caused an issue. Canbus is super sensitive to voltage/amperage spikes. I knw this is going to sound crazy but cut the wire loose thats feeding your led’s and your reverse lights will work again.
When do I need to replace my reverse light bulb?
If there is power at the reverse light bulb terminals when the vehicle ignition switch is on, and the car shift lever is in the reverse position, the bulbs are burned out and should be replaced.