Toyota P0051 – Diagnose and Repair

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Come along with Eric O at the SMA shop as he has a look at a P0051 on a 2008 Toyota Sienna. He shows how to diagnose and repair an AFR / O2 Heater Circuit Code the right way. We also get a look at a new DIY type scan tool that will be featured in some up coming videos. -Enjoy!!

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Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not South Main Auto Repair.


JasonKraft says:

any suggestions for the same code but a good o2 sensor?

Jesus Martinez says:

Hi Eric: How did you get the a/f sensor test light. Could you share the link? Thanks God Bless you and your family

Vince Gagich says:

Thx for your help. Great help

Andrew Villanueva says:

l changed the 02 sensor and the code came back. p0051. any suggestions

Mt man 1949 says:

What I'd like to know is why I need a heater circuit. What happened to if the heat gauge says warm cut the heater on?

fuzzy19111 says:

Nothin like getting boned on parts!

Marco D M says:

can that actron scanner diagnose my 2003 liberty abs light?? (and abs in general)

like tits on a pole! 😂

david laporte says:

u can get denso sensor from rock auto for under $100. I believe it is same sensor without Toyota stamped on it. if it is practical to wait. they have a warehouse in new York. might get lucky

MeVsMe says:

did you make that test light?

topo4u20 says:

Hi. May I ask why you use a small bulb (194?) with the two wires to check the heater circuit instead of a regular test light? Thanks

Garrett McEwen says:

haha I said "click" as you tightened that right as you did.

George Baerreis says:

This is by far my favorite channel on youtube. I know you have a review coming out on that actron but can you tell me if it's worth the loot? Thanks for everything you do!

Michael Staake says:

I have a Bosch 1350 from O'Reilly that looks to be very similar to that unit, except for the color of the case (blue vs orange) and the logo on it. Software and buttons look the same. I think the Actron CP9680 is the same as the Bosch 1350, just the retail price on Amazon is cheaper. Just FYI…

Randy Looper says:

I can feel your frustrations on getting wrong part or just waiting forever on delivery driver, time is valuable in auto industry esp when you have to make money i really appreciate your videos mr. o. I want to thank you for such educational videos and what you mean to the youtube community

cookie monster says:

Great video! Hey Eric where can i get one of those test lights? Thanks.


If you happen to know, out of curiosity I was wondering if this sienna is a 3.3L?

Dusty Foster says:

Hey Eric the scanner you used in your video appears to be the same as the Bosch Obd1300 I use. Maybe it's just a rebrand? Either way I'd like to see what you've got in store for it. Keep up the good vids.

Graveltrucking says:

Come on now I know you want to drop the F bomb, people should know mechanics do have spazzes and throw things, I know I do when I'm fighting something and its not co-operating. People know not to come around when they hear the F bomb being dropped.

elim210 says:

ave reference at 2:33?

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