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check fuses if ok it should be the emergency brake switch, when ebrake is on the lights will stay off. depending on the the car/truck there is a control relay. Make sure all fuses have been checked inside vehicle and the engine compartment there is fuses there too . Check Wiring for any shorts, broken,brittle wires . You have to look under the dash to do this . Follow wiring to the relay and test all for power. For best diagrams all data Make sure that your parking brake isn't on. Faulty Ambient Light Sensor.

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โˆ™ 2005-09-29 13:04:39
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Q: Why might the daytime running lights not work?
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