Keyless Entry

[Broosedamoose]

My keyless entry quit working all of a sudden. It was working fine. I went out to the truck 5 minutes after getting out and the doors wouldn’t unlock. I put a new battery in the remote but it didn’t work. I tried my spare, also with a new battery and it still didn’t work. So I just used the key until I had time to check it out. Two days later, after the truck had been sitting overnight, I went to leave and pressed the button and it worked! Out of the blue it just started working! Now, about a week later, it quit again! I thought it might be the alarm module so I pulled it out but it still doesn’t work. Where do I start?

 

[rumblecloud]

I've never had to mess with mine, but it sounds like a loose wire, but that would be too simple. The only moving parts are what's in the door. So I would start there. Again, not an expert, but that's where I would start.

 

[97RangerXLT]

I would say that the issue is an intermittent ground or the RKE module itself. also check the fuses to make sure no green nasties are forming on or around them, likely other issues will pop up if that is the case.

AJ

 

[pentode]

I'll just offer an alternative possibility. My remotes (I have 3) periodically stop working and it's always the battery in the remote making poor contact. It seems to be a combination of the terminals losing their springiness and possibly some light corrosion, but I just bend the terminals a bit to make better contact and they'll work for a year or so. It seems like a little impact, such as dropping the keys on the ground, often seems to provoke the failure.

Just putting it out there - I'd rather have that problem than bad wiring harness.