Backup lights do not work but brake lights work Honda crv?

Answer 1

Backup Lights do not work

The backup lights are on a separate circuit from the brake lights and each use a separate dedicated switch to control when each group of lights turn on and off.

The type and location of the backup light switch depends on the make, model, and year of production of a vehicle, and since I'm not familiar with your vehicle, this answer of necessity will be generic in nature.

The backup light switch is usually mounted either within the dashboard or, in the engine compartment. In either case, it will be mounted directly adjacent to a moving part of the gear shift mechanism. Thus when the transmission is shifted into reverse, the moving linkage will move the switch, turning the backup lights on.

However, on many later model vehicles, the backup light switch may be mounted by screwing into the side of the transmission so that when the transmission is shifted into reverse, the backup lights are turned on.

In the case of the switch mounted in the dashboard area or engine compartment and working off of the movement of the transmission shift linkage, the cause of failure to operate could be:

• Switch is not properly adjusted [very common].
• A connector or wire in the circuit has become disconnected, cut or broken [slightly less common].
• The switch itself could be defective [not very common].

These same causes are true for brake light switches mounted into the side of a transmission, except that I'm not aware of them being adjustable and thus if the switch is the cause it's defective and replacement of the switch is required.