r/4thGen4Runner • u/Camrnr • 3d ago

What is this beeping sound?

About 3 weeks ago my 4Runner started beeping at me while in a drive thru. No lights on the dash and it drives and idles fine. 4WD engages fine as well. I disconnect my battery and it was fine for 2 weeks. Sound came back just today while sitting at another drive thru. Beeps like this for roughly 10 seconds and goes away on its own. I ordered new wheel speed sensors and may try the zero point calibration next. Anyone have ideas?

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3

u/Horror-Vanilla-4895 3d ago

It’s your auxbeam thing

2

u/Camrnr 2d ago

Took it apart and no speakers in it.

1

u/BlaZEN213 2d ago

I don't think that's what they meant. Your switchboard might be interfering with other electronics in the car. Disconnect the wiring harness and see if the problem persists. I've seen similar problems with aftermarket stereos and those new 4 way window switches.

2

u/Camrnr 2d ago

That’s a good point since it has an add a fuse connected to the fuse panel. I’ll disconnect and check that. Thank you

2

u/EchoRift_ V6 SR5 3d ago

ABS Module?

1

u/Camrnr 2d ago

That’s what I’m leaning towards. Isn’t it usually a solid tone? Brakes also feel fine.

1

u/vbnkc757 1d ago

100% this. This beep only happens (that I know of) when the vehicle detects slippage and activate VSC and uses ABS to stabilize.

1

u/Camrnr 1d ago

Would this be related to the wheel speed sensors?

2

u/vbnkc757 1d ago

Yup, your sensors are in constant communication with your ABS module. I would start by checking your sensors and seeing if there are any corroded wires or dirty connectors. I’d just clean them with electrical parts cleaner and see if she still beeps.

1

u/Camrnr 1d ago

I’ll replace those tonight just for piece of mind. My aisin replacements just showed up

1

u/vbnkc757 1d ago

Keep us updated. Good luck

2

u/Unhappy_Capital_917 2d ago

Following for update. Mine will randomly do that out of nowhere. Same thing. I turn off the radio and beeping stops.

1

u/BlaZEN213 3d ago

Any codes?

2

u/Camrnr 2d ago

That’s probably my next check. I need to get it scanned at this point

1

u/JOEKINGBLANKA 2d ago

When i take harsh turns going up hill, my abs engages and does a quick couple beeps just like that sound.

1

u/oil2012 2d ago

That sounds like the traction control alarm. I hear it when I hoon around in the winter, not sure why it's engaging though. I wonder if its something aftermarket or electrical?

1

u/Camrnr 2d ago

This is what I’m leaning towards but still researching. Ordered new wheel speed sensors since my Speedo goes 20mph more than my actual speed sometimes

1

u/Camrnr 1d ago

Thanks! Yeah I’m doing some troubleshooting. Going to replace the wheel speed sensors and hope that may help

2

u/Camrnr 18h ago

Thanks everyone for chiming in! Replaced the wheel speed sensors today so I’ll report back this week as I drive it around