Skip the auto shop - Our mechanics make house calls

Q: What is the photo sensor?

asked by on

What is the photo sensor?

A: The photo sensor is responsible for determi...

The photo sensor is responsible for determining how dark it is outside, and thus whether or not the headlights should be on when in automatic mod. This sensor is located on the driver’s side of your dashboard. Be careful not to cover up the sensor, or it will think it is always dark, and the headlights will always be on.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: How do I use the flashing hazard lights?

Hazard lights are just the turn signals on all four corners of the car that can be set to all flash at the same time to warn others on the road that your vehicle is stationary on a roadway or...

Q: Headlights independently fail and SUV shuts down

Any time bulbs are replaced, they must be done so in pairs. Especially high powered headlights. The module driving the lights or the switch may be experiencing a malfunction. I recommend having another expert inspect the electrical circuit for any...

Q: How do I lock the doors with the remote keyless entry (RKE) transmitter?

The remote keyless entry (RKE) transmitter allows you to lock your vehicle without using a key. When outside of the vehicle, press the lock button on the RKE transmitter (the lock button looks like a closed padlock). This button locks...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...