Check the wire harness in your door hinge for broken or chafed wires. As the door opens and closes repeatedly it fatigues the wiring often causing this symptom especially if the flex cover is damaged. If you have a door lock that’s not always working it could be the lock actuator located behind the door panel near the external key lock. Sometimes the wires from the actuator get into the pathway of the window exposing bare wire which could be causing the short issue. Switching the passenger and driver side bulbs is a long-shot but not unheard of, is also quick, easy and doesn’t cost anything.
Check the power wires between the headlights and the fuse box for damage. Sounds like you have a power line short to ground. Meaning the wire that supplies 12 volts to the headlight is making contact with a grounding wire or touching bare metal
somewhere between the fuse box and the headlight. Internet search a wire diagram to use as a map before you start the wire trace.
SOURCE: Headlights on passenger side not working
all you need is to replace your headlightn relay. in time they get worn out and most of the common one on j3o`s is the driver side. relay is located in the driver side fender corner of firewall next to the cruise conrol bolted by one bolt.
SOURCE: 2002 Highlander headlight keeps blowing fuse
In the Fuse Relay Box under the Hood there is a Headlight Relay. Replace this Relay along with a New Fuse and it should work. Let me Know. Please Rate my Response, I need all the Help That I can Get! Thanks!
SOURCE: My 2002 astro van door locks will not fully
On repairing door locks first check the cigarette lighter and see if it works, the door locks gets it power on the same fuse. If good,you then need to check if 12VDC is at each of the actuators when pressing the switches for the locks. If no power is not at the actuator you should suspect the power lock relay to be defective. This relay is located beneath the steering column within a major cluster of connectors and is located within a bank of 3 relays located within a covered housing. These 3 relays are identical and you can temporaly reverse them to see if this will solve the problem. If it does, GM's part # is RY-232. Can't help you on the rest.......sorry!
SOURCE: 2002 Ford Explorer - Drivers side door lock, rear
Aside from the fuses, your drive side power door lock may be failing to work because of a bad door-lock relay system, or, alternatively, the locking switch/button, itself, is not malfunctioning and in need of replacement.
A great handyman site that specifies the above probable causes and more is the following link:
http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Vehicle_Car_Zone_Cars_Trucks_Vans_Locks_Power_Locks_Do_Not_Lock_When_Pressing_Locking_Switch_Button.htm
Good luck!
SOURCE: 1999 chevy blazer auto door locks and the rear hat...
Ok, heres the fix, 3 amp fuse marked windows / locks in the underhood fuse box. Changed it out and everything works again. Hope this helps you.
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