Quote:
Originally Posted by 370HSSSV
I used the search function, but nothing for 5th gen, and not a clear answer yet.
2015 4Runner
So today, my door lock keeps acting up, when I pressed unlock button either on key fob or the button on driver side door, the door will just lock itself up right after I press unlock.
And there is also a period of time, both engine and key are off, the door lock is just repeatedly doing lock/unlock process non stop...
It only happens when the car is parked so far.
And all the door locks while I turn the key from ON to Start, it supposed to be while I shift out of Park right?
I checked the fuse box, it's completely dry (because it's raining hard last couple days here)
The only after market I have that are electrical related is a switch pro 8100 and a BD light bar, I had them on for more than a year already.
I read previously it could be the battery in the car is old about to go, is that why?
Any idea on what and where to check and what's going on?
Thanks for your time, I really appreciate your responses. Trying to catch the moment between unlock/lock to open the door was not fun...
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Hi
@
370HSSSV
,
Before you go crazy trying to trouble-shoot this gremlin, Disconnect the
NEG Battery cable! This is done when the vehicle needs a
'Main body ECU Compu network' MASTER RESET! The ECU (Electronic Control Unit) is a computer, much like a windows laptop (and does have a
'Registry/file system').
But they do store quite a bit of
Temporary files, History logs, and
Learned data...etc, that does need to be deleted from time to time or the truck will experience malfunctions in different areas, e.g., lighting, security system, instrument cluster (unrelated) icons lighting up together for no logical reason (Check Engine, GEN, Seat-Belts, 4-Low, Steering...etc)!
So, disconnect the battery for a minimum of four hrs; I do mine (if I need to) when I'm done using the truck for the evening, and reconnect in the morning.
NOTE: When you try to restart the truck, it will run for 3 seconds and shut-down... don't be alarmed, this is protocol! The next time you restart, everything should be back to normal, including the trouble with the locks!
Be sure to let us know how you make out... don't worry, you'll be fine
"AFTER the master reset!" 'Best to you',
rig
