Answer
May 24, 2024 - 10:17 PM
Hello there, Brook!
Alright, that random driver's side light on your 2017 F-150 sounds like a bit of a gremlin! Replacing the light switch was a good first step, but since it didn't solve the problem, let's look at a couple other possibilities.
There are two main culprits for this kind of thing: electrical gremlins or a bad body control module (BCM). Electrical issues can be tricky to track down, but sometimes it's a simple fix like a loose wire or a faulty relay. The BCM basically acts as the electrical brain of your truck, and if it's malfunctioning, it could be sending the wrong signals to your lights:
Here's what I'd recommend next:
1.) Check the wiring harness: Look around the driver's side headlight for any chewed wires or loose connections. A quick wiggle test can sometimes reveal a sneaky short.
2.) Scan for trouble codes: Some fancy code readers can pick up on electrical issues and point you in the right direction. This might not be a DIY job, but a mechanic can easily check it for you.
If those don't pan out, then the BCM might be on the fritz. Replacing that's a bit more involved, so I'd recommend taking your truck to a mechanic you trust to diagnose it properly.
In the meantime, you can try disconnecting the battery negative terminal when you park to prevent the light from draining your battery. Just remember to reconnect it before you start the truck again!
You may need some parts in the process, click this link to be directed to our website where your vehicle information has already been entered. Simply enter the part's name into the search field to get started.
Good luck!
Alright, that random driver's side light on your 2017 F-150 sounds like a bit of a gremlin! Replacing the light switch was a good first step, but since it didn't solve the problem, let's look at a couple other possibilities.
There are two main culprits for this kind of thing: electrical gremlins or a bad body control module (BCM). Electrical issues can be tricky to track down, but sometimes it's a simple fix like a loose wire or a faulty relay. The BCM basically acts as the electrical brain of your truck, and if it's malfunctioning, it could be sending the wrong signals to your lights:
Here's what I'd recommend next:
1.) Check the wiring harness: Look around the driver's side headlight for any chewed wires or loose connections. A quick wiggle test can sometimes reveal a sneaky short.
2.) Scan for trouble codes: Some fancy code readers can pick up on electrical issues and point you in the right direction. This might not be a DIY job, but a mechanic can easily check it for you.
If those don't pan out, then the BCM might be on the fritz. Replacing that's a bit more involved, so I'd recommend taking your truck to a mechanic you trust to diagnose it properly.
In the meantime, you can try disconnecting the battery negative terminal when you park to prevent the light from draining your battery. Just remember to reconnect it before you start the truck again!
You may need some parts in the process, click this link to be directed to our website where your vehicle information has already been entered. Simply enter the part's name into the search field to get started.
Good luck!
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