Chevy Express Van Electronic Throttle Body Problems Part 1

Intermittent "reduced power" condition (no upshifts or downshifts or throttle response) Trouble codes - Throttle Body codes P1516, P2135, P0120, and P0220. Oxygen Sensor Heater codes P0059 and P0155 Here is the link to part 2 • Chevy Express Van Elec...
Links to other mentioned videos
SD Premium video on an electronic throttle body www.scannerdanner.com/scanner...
2013 Chevy Impala No Start - Ignition Relay Low Voltage Codes (P1682, P0689) • 2013 Chevy Impala No S...
Troubleshooting a Shorted 5v Reference Circuit (Chevy Silverado) • Troubleshooting a Shor...
ScannerDanner Tools:
www.scannerdanner.com/tools.html
www.amazon.com/shop/scannerda...
For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium www.scannerdanner.com/join-sc... There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!
Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC 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 ScannerDanner LLC, 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 ScannerDanner LLC.

[@ScannerDanner]

P0155 Here is the link to part 2 kzbin.info/www/bejne/gYWvnnuwoMSMapI Links to other mentioned videos: SD Premium video on an electronic throttle body - www.scannerdanner.com/scannerdanner-premium-chapters/new-series/606-sdp-day-15-voltage-drop-testing-fundamentals-fuel-pump-and-tac-case-studies.html 2013 Chevy Impala No Start - Ignition Relay Low Voltage Codes (P1682, P0689) kzbin.info/www/bejne/jJKQfKiVg8-hZ5o Troubleshooting a Shorted 5v Reference Circuit (Chevy Silverado) - kzbin.info/www/bejne/iJS0lXyKpMR0haM

[@kc360awareness]

@ScannerDanner - 5:01 “I have to poop”. You are such a goof, it shows you are having the time of your life working with Caleb. What a treasure working so well with your own son. You’re a blessed man Danner

[@Bwelsh1981]

"I have to Poop". Hats off to you Caleb for. For leaving that in!🤣

[@R3YNZ]

I'm 2 years into my diagnostic apprenticeship and definitely intermittent issues are the hardest. I hate touching stuff and the vehicle runs like new. I feel you in this video. 😒 Like my boss/sensei says though, you got to start with what you know is broken see what happens from there. One last note your son is doing a great job in the video editing. I swear the camera angles and edits looked like tv quality show edits. Especially like when you were talking to camera it looked very reality show-esque angles. Great job, keep up the good work! 😁👍

[@ScannerDanner]

Caleb is changing the game for sure. I am super proud of him. Thank you! I will make sure he sees this comment.

[@johnnytacokleinschmidt515]

That means he'll leave and go to TV and film production....

[@jdrs4214]

I used to cut car radio OEM harnesses, and install car stereos with wire nuts, and spade connectors on our older family vehicles, as a high school kid!! I was obsessed with car audio back then. I would buy car audio equipment with my allowances; but I realize now, what an inexperienced Mr. Know-it-all hack that I was.

[@rickw.9298]

The beginning reminded me of the Benny Hill show lol. Remember the signs in the old school mechanic shops... if you watch the price is twice as much, if you help 3x, if you worked on it before you brought it here 4x. Time for a new sign. Happy Independence Day to you & yours!

[@dennismelville7532]

LoL.... anyone watching Benny Hill.. was definitely not looking at signs.. nothing but cleavage and lingerie!!

[@nateb.1568]

Caleb is getting so good at the edits. Best diagnostic channel on the web!

[@knomames9966]

What's up, Scanner Danner! I just wanted to tell you that I really appreciate your videos and love the fact that you get to make these videos with your son. You guys are a great team and always crack me up with your humor! Great job to both of you!

[@billyremmert7679]

Will this cause a uncontrolled by acceleration with a vehicle jerks and bucks at will and it breaks fail to work properly

[@bubbatron4]

LMAO!! I work on Express' and Savana's all the time. I always pull the passenger seat. That was hilarious!!!

[@davelewis2870]

Yep, deep 18mm socket and an air ratchet, takes less then a minute

[@johnnytacokleinschmidt515]

Yessir! Same here.

[@robertmedina6875]

I've been watching you for quite a long time now and you always do things to improve your video quality and teaching techniques! The best Channel on KZbin for sure!

[@ScannerDanner]

Thank you my friend

[@izukenekuzi]

you are at your brother's shop with your son and working on a friend's car. having family and friends around is the best. thank you for everything, your lessons have put me right where i belong, but a long way to go still.

[@ScannerDanner]

Thank you so much my friend!

[@billyyoder8171]

Thank you Tres Danners. Good job. Have a blessed and safe week to you and your families.

[@rollenschultz2707]

Wire nuts are ok if you run out of masking tape.

[@manuelsalvatierra2940]

That intro. Great! Needs that Troy McClure intro. Hey, I'm Paul Danner. You might remember me from such cameos in Eric the Car Guy and South Main Auto

[@chuckgilbreath3033]

Man y’all are awesome thanks for all you guys do

[@joshuapruden6497]

Fantastic editing! That part where you are taking the Dog House off and there was music playing was hilarious! For some reason it reminded me of Mr Rodgers. Only Difference is, the Mr Rodgers song should be changed to "Wont you please, Wont you please... Please wont you fix.... My Daily Beater". LOL!!! Great job Guys! Keep up the good work!

[@gtautomotive22]

Man the videos are getting really good. Good job guys

[@ScannerDanner]

Glad you think so!

[@IsshmanGarcia]

loving the camera quality now a days SD!

[@Tek_Nician]

Wow the production is crazy good! Great job Caleb!

[@ScannerDanner]

Thanks for noticing!

[@tracydiller9378]

That things sounds like an old Volkswagen LOL. Great video keep them coming.Looking forward to part 2.

[@justforkiks29]

That thing sounds like a lawnmower.

[@salvadorgutierrezr5914]

You got this Scanner Danner, thanks for the video, and saludos ✌ for son Caleb and big brother👍👍👍👍👍👍👍🙏✌

[@nigelstringfellow5187]

Thank you Paul for yet another very educational video I am really enjoying being a part of your site

[@ScannerDanner]

Great to hear! Thanks for your support!

[@nigelstringfellow5187]

@@ScannerDanner sent you a small donation that you can use for the kids at Rosedale thank you for everything you do cheers

[@Pablo_Automotive]

Amacing video, let's go see the part 2 =)

[@codywichman213]

your new camera equiptment is on point

[@petar443]

Kyle is doing hell of a job editing the videos. It's kind of like i'm watching Discovery channel. Very professional. Cheers

[@ScannerDanner]

Thanks so much! His name is Caleb btw 😉

[@dnlmachine4287]

Great vid again Mr Danner. I trust you wear a Larry Murphy jersey on the ice. Greatest Penguins defenceman ever. Stay gold.

[@ScannerDanner]

55!

[@laldogpaul568]

Oh hey!!! ha ha like a young Spielburg !!! Great stuff guys keep it up.

[@richard1835]

I would fix the wiring issue Leave the doghouse off. Check for proper voltage and ground at the TB connector and button her up and clear the codes and drive it . I would see if there was an immediate return of any codes as I drove it, I would hope the original customer complaint would be solved. Thank you Paul for a great video.

[@patsuddarth1093]

I replaced my throttle body sensor, temperature sensor, & purge sensors. I even replaced the connectors to the sensors, as well. Now, I still have these engine codes. The PO118 code went away, and came back. After replacing the sensors, do I need to start my van, and let the engine run, so the ECU can see that the sensors are good? I ask this, because I just turned the key, in the on position, without starting the engine.

[@richard1835]

A bunch of comedians. Yes you had me laughing. Thank you for a great diagnostic video on the Electronic Throttle Body. Thumbs up.

[@ScannerDanner]

Glad you enjoyed it

[@paulodias3947]

I have a 2010 express 2500 4.8 V8, I have a p0506 code and I cannot find an air control valve anywhere for my specific model. Do I need a new throttle body? My van stalled and now it cranks but won’t start.

[@jonathanshagoury338]

Beer league sounds like a good time to me. I used to be goalie when me and the boys played street hockey. Not nearly enough pads I tell you that.

[@jamesross4350]

Love the intro.

[@patrickl6866]

Hey Paul, don't take this personally, but I kept finding myself staring at the sweet blue '66 GTO convertible in the background. Is it a 4 speed tri-power? I used to own one a long time ago and it was nice.

[@charlesmecum5009]

I hv a question, if new modules hv to be programed, how on the assembly line does everything just work.

[@KY.0009]

The "oh hey!" thing is hilarious

[@shauno3697]

It was a bitter lesson for me too, but I unbolt a seat and get on with my day.

[@albertsautodiagnosticsllc2130]

Oh Hey! Lol loved it 🤣

[@MrPincheloko]

Danner you not gonna believe me but I'm working on a 2016 express and having problems with the throttle iwas about to ask for help and j found this video I can't wait for it to start lol

[@ScannerDanner]

perfect timing then! The only difference will be your 2016 model year, the module that controls the throttle body is built into the ECM, unlike this model (06) which is external to the ECM, but everything else is the same I believe.

[@MrPincheloko]

@@ScannerDanner I see I didn't know was a 06 the one you working on But if everything should be the same then I have a problem whit the throttle body I thought was different cus in my scanner shows 2 tps volts they run opposite from each other but if I back probe there's only 1 cable for tps volts I don't know where the second tps comes from Thanks Paul and happy 4th

[@ScannerDanner]

@@MrPincheloko there are two signals on ALL of these my friend

[@MrPincheloko]

I couldn't find the second one at the throttle body i got 6 pins 1 and 2 are motor control 3 is signal 4 is low ref 5 is 5v And 6 is not use Where I found the 2nd

[@johnbriscoejr9738]

Question in your book and class…I’m on section 7 Throttle Position Sensor (TPS). Want to know if you replace Throttle Position Sensor does the module needs to be reprogrammed or flashed? Also, if you replace TPS do you need to replace the gas peddle too, because of close connection? Premium student

[@ScannerDanner]

No sir. Programming is not necessary for a TPS or APP replacement. Just a memory clear would be needed on some. (Reset all adaptive type thing). Thank you John! Feel free to use my comments sections in my premium videos too. I'll answer those as well.

[@richard1835]

A dedicated control module for the TB. Is that common? With the house wiring involved in the original fixes I would be worried about resistance issues knowing those TB's are so sensitive to voltage fluctuations.

[@ScannerDanner]

it was on the early GMs

[@mylo312]

It sucks you have to pull the passenger side seat out LOL entertaining a watch I went through the same thing on my van

[@johnhnetkovsky8917]

Paul,buddy only 4 18mm headed bolts on pass seat,electric 3/8 impact and 20 seconds outta there!!

[@lustfulvengance]

Yes!! This!! 100%

[@mikechiodetti4482]

Gotta love intermittents!

[@VWWRENCHIE]

Ya gotta love Chivy.👍

[@GwadarAdvisors]

Sir need ur assistant remotely to diagnosis of my Q7 short to ground possibly, crank no start.

[@ScannerDanner]

www.scannerdanner.com/forum/post-your-repair-questions-here post to my forum, it is free to join! We can help

[@logicalguy488]

I agree with you. Did the "Designers" of GM even consider the Dog House needs opening. I had the same frustrations.

[@FrostE941]

What year was the throttle control actuator transferred to be apart of the ecm?

[@ScannerDanner]

I'm not sure.

[@bmb1455]

which software are you using on your scan tool for the diagrams with highlightable circuits? i have a higher end autel and identifix, but wasnt sure if i could do that with identifix diagrams or not. soon to be reassembling an express van after a body swap (Adapting an 06 passenger onto an 03 cargo body) so im sure im going to need it.

[@ScannerDanner]

This would be ShopKey Pro (mitchell) I'm not sure what identifix uses to be honest

[@bmb1455]

@@ScannerDanner I'll have to try adding it into my autel software and see if it works. I know i can sign into different subs on the autel. the diagrams look identical between my Mitchell/alldata and identifix. Hopefully it'll work

[@ScannerDanner]

@@bmb1455 I just logged into ShopKey the other day with my Autel Ultra and could navigate the program but I do not think the highlighting of the diagrams worked on it. But I could be wrong

[@lawrencemeyers1212]

Help me bro I can't find problem whit my 08 Grand Prix base model gt style p1125 p2138 p2125 I replaced gas pedal it power it has continuity

[@lawrencemeyers1212]

I pull fuse out for the throttle body it work for whole next it start right back reduce engine power it make me made this should be gm recall

[@UcantBeSerious03]

8:24 "Guess where we are?" In the dog house?

[@jakestyles3412]

excellent videos, I already know everything I need to know, from your videos, what is in premium that I could learn more?

[@ScannerDanner]

Come check it out. I offer a 14 day free trial www.scannerdanner.com/join-scannerdanner-premium.html Even if you don't need the hundreds of classroom training videos, there are hundreds of case studies you haven't seen, with NO ads!!

[@billyr9840]

Nice !

[@danielesilvaggi]

weeeeooooweeeeeoooooweeeeooooo you know how fast you were going son? lol

[@jimyep9971]

Great video, looks like fun. on a side note thats a real car there in the background (GTO) dont make them like that no more.

[@allenramirez2778]

Glad to see im not the only 1, I always found the heat shrink butt connectors not shrunk, that $%#^#^^# drives me %#%#^÷& nutz!!!

[@RadialPen6262]

The globo gym commercial intro 🤣

[@johnmilner3729]

WHAT A PILE!

[@pseudosmith9945]

ARGGGHHH.. i want that 66 Goat!..

[@danielmusat597]

The intermittent pulsing on the O2 sensor heater is a current induced by the ECM to check the resistance of the heater. If the resistance is infinite, the ECM tries over and over again.

[@ScannerDanner]

If this was the case, with the test light acting as a good circuit, it should have stopped pulsing. I'm not sure that is what was going on here, but I could be wrong. Thanks!

[@danielmusat597]

That is correct. On the other hand, the ECU expects a value in a certain range. The test lamp has a much higher resistance than a heating element of an O2 sensor. At least this is the way I would design such a circuit.

[@johnemberton408]

Would it have been stupid after finding that bad splice, to clear the codes, turn the vehicle on and force a momentary open to see if it went in reduced power and gave you the same gauntlet of codes? I actually haven’t finished part 1 yet, just wanted to pause half way through and try to brainstorm with you.

[@ScannerDanner]

You could have done that. I didn't feel the need to prove that part as I've seen enough of these failures to know for sure that it would have definitely forced a reduce power mode. Thanks!

[@johnemberton408]

I see! (he says, while feeling like a rockstar because ScannerDanner responded to me)

[@jimphillips2380]

Ok Paul,you have confessed your faith in Jesus,not being a legalist but keep the beer hockey to a minimum !! love ya brother. Keep up the good videos my friend!!!

[@ScannerDanner]

Of course my friend, thanks!

[@oldhvacguy8427]

Whoa! Is that a classic Pontiac in the background?

[@hatfez]

That's what I said! OK, it's painted a hideous purple, but it might have a problem with the MAP, or the injectors need a balance test. For the love of God, check out the Goat!

[@justincase3880]

Hmm .. firing the “Parts Cannon”? Well, the “no parts required” fix is the holy grail in this world .. it can happen more times than you would think ...

[@sergiocorrea6923]

P los

[@turningwrenchesautorepairm5017]

What brand light are you using ? You have a link ?

[@ScannerDanner]

You mean my stick light? I'm about to buy another one myself. I think I've had it for 2 years now? Battery life is a little shorter than when new. I have it listed here (astro light I think?) www.amazon.com/shop/scannerdanner

[@turningwrenchesautorepairm5017]

ScannerDanner yes. I ordered that same light and it arrived yesterday. That rheostat knob is awesome

[@kellysahy2850]

Yup gotta remove one of the seats on those vans!!

[@MoparMattt]

I have an intermittent cam pos sens code on my 2000 eldorado gotta love intermittent failure.

[@ScannerDanner]

Hate them! Sometimes it is worth it to change a part (yes there are times lol)

[@MoparMattt]

Yeah its original from 2000 I was gonna throw a acdelco one on it and see what happens if not then I'll look at spots for wear in the wiring (probably where it goes over the valve cover) but hopefully just a new factory sensor will fix it right up it literally comes on, then 3-4 startups later gone.

[@shanestout3543]

I got one i could use help on.. Internittent high throttle..

[@edwinlomonaco6754]

The very 1st thing I would do is to make sure that the re-wire was done correctly. Too many times I've seen other techs wire things in wrong. Then you're chasing your tail.

[@twincam825]

You have to remove seat out another fine gm product.

[@robertandrews8101]

😂😂😂😂😂😂😂😂😂 wow I thought I was the only one that couldn’t get doghouse out I had a tune up on this and just move the doghouse side to side lol

[@ScannerDanner]

😂😂

[@kimpaulwills4722]

I have an 08 and just out of the blue I will lose all power whole driving. I just have to stop completely and then it will go again. I don't need to put it in park or neutral or even turn it off, just stop and then go

[@ScannerDanner]

No way I can answer this. What tests have you done?

[@hatfez]

Nevermind that POS GM rust box. What about that ragtop GTO?

[@richard1835]

The O2 sensor readings will not be accurate with two significant exhaust leaks.

[@ScannerDanner]

correct but the tests I showed for the heater circuit using bias voltage at start up is unaffected by that :-)

[@richard1835]

I took the passenger seat out on the one I took off.

[@jamesross4350]

Lol, bud the dash needs to come out before the doghouse comes out.

[@sparkyobrian6417]

lmfao, this is a great video, informative, entertaining, and relatable, not only the glasses. hey personally I cant think when I have to hit the out house, lmao

[@ScannerDanner]

Glad you enjoyed!

[@ScannerDanner]

I didn't expect Caleb to leave that in there lol

[@throttlebottle5906]

failing ECM is my guess before even watching past 2:10. lol EDIT: ahh separate module and module was spanked, they like to die internal to the ECM also. start, let idle, heat with heat gun(and stall/reduced power), let it cool/shock cool with water to restart. repeat process it will do it every time, many of the GM's did the same thing and I have a feeling there were many millions of TB's changed for no reason lol

[@renjithb2567]

Waiting from gods own country

[@richard1835]

Your supposed to melt the heat shrink material after assembly.

[@Henrypicua]

En mi van express daba ese codigo..lo llevé a un taller y me cobraron $500.00..y el problema seguia..al final era el cable dañado..

[@PhillyDee215]

Man I hate electronic throttle bodies, so unnecessary😔

[@aleskyfinis1025]

Don’t know who we go

[@masterfastermasterfaster]

Guys, please the motor sound on the intro is little bit loud Thank you 😍

[@ScannerDanner]

Hmm, it is no louder than the audio when I first start talking, in fact it is a little quieter. What are you listening with? Thanks!

[@quangnhatnguyen1172]

there's some music in this video, new interesting thing hah!? :D

[@ScannerDanner]

we pay for the rights to certain sounds and music now :-)

[@quangnhatnguyen1172]

@@ScannerDanner yeah, thank Caleb but remember don't put music in where you're explain something so we can hear it clearly. just use it for fun moments! :)

[@charlesmecum5009]

Mechanics are basically private investigators,

[@allensmith8953]

remove four 18mm nuts and that passenger seat comes out under 30 seconds. that's how you get the doghouse out.

[@mojunk19]

Flush this toilet and move on. It’s probably a free be.