2017 equinox auto lights
3 Answers
location of ambient light sensor. I can't say replacing that sensor will fix anything? Check codes listed for that sensor. They are manufacturer specific codes.
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note circuit description. good luck
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Unplug the sensor and start the engine. If the headlights come on, the sensor is bad. Unplugging the sensor will create a high resistance signal to the computer from the sensor. This will cause the computer to switch on the headlights. If that doesn't work, further troubleshooting is needed by a shop that has the equipment to do so. Hope that helps! Jim