2006 speed sensor A circuit

06 Tacoma automatic has check engine light come on and sometimes goes off.It mainly
stays on and code reader shows speed sensor A circuit.Any help would be appreciated.Thanks

 

Sounds like a p0500 code.
It’s a pain in the ass to diagnose.
If the speedometer still works, I’d live with it.

Read all about it here.
Scroll down to the p0500 section.
https://www.tacomaworld.com/threads/2nd-gen-information-diagnostics.784008/#post-28042157

 

I'm asuming P0500?

If your speedometer always works then most likely it's the instrument cluster that is failing.
But there is some testing you can do if the problem occurs consistently.

If you have a scanner that can read vehicle speed from the PCM it may be a very simple diagnosis, catch it when it's reading 0 while driving and give the cluster a few taps. If it starts reading again you know for sure it's the cluster, if not then further diagnosis is required.

https://www.tacomaworld.com/threads/2nd-gen-information-diagnostics.784008/#post-28042157

 

Thanks I’ll have to do some research.The speedometer and cruise control works fine.I read where
possibly the whole cluster can go bad.

 

It can…….
And if you live in a state with inspection. It can get expensive.
That’s kind of why I said, “If the speedometer still works. Live with it”.
Sure, fixing it would be nice. But it’s time consuming and expensive.
That is, if in fact, if it’s the cluster.

 

The most common cause seems to be the cluster but never hurts to test.
I suspect it's probably a cracked solder joint in the cluster that causes this but I have yet to see somone take one apart, find it, and fix it.

 

Yes,I may decide to just live with it lol. Thanks guys!

 

Just popped up.

https://youtu.be/PKghVhNYFd0?si=ujTKzjzkMIO2C5vL

 

Wow that's crazy where he is you can't legally alter mileage in any way, in the US as far as I know as long as it's marked not actual mileage on the title when the vehicle is sold there's nothing wrong with doing so.

We do know that there is a workaround to bypass the circuit in the cluster, it works on 05 at least. Essentially we disconnected the output wire from the cluster and connected it to the input wire.
https://www.tacomaworld.com/threads/clear-a-single-code-to-pass-inspection.802680/

 

I’m fairly certain you can have an odometer with the incorrect mileage.
But you have to fill out an odometer disclosure upon selling and/or registering the vehicle.

My state (Tennessee), even has the documentation for download.
That way you have it all filled out before going to the DMV.
https://www.tn.gov/content/dam/tn/revenue/documents/forms/titlereg/f1310801Fill-in.pdf

 

Maybe try these guys?

https://www.automotivecircuitsoluti...a-tacoma-gauge-cluster-mail-in-repair-service