2007 - 2014 GM SUVs Diagnose & Repair P015B or P015D HO2S DTCs (Chevy Avalanche / Tahoe / Suburban)

In this repair video we will go over how to determine the root cause for either the P015B or P015D heated O2 sensor (HO2S) delayed response time diagnostic trouble codes (DTCs) on GM trucks and SUVs of this vintage. This way you will know whether replacement of the HO2S is actually necessary, or whether the DTC is caused by something else avoiding wasteful parts cannon firing (aka guessing).
The truck illustrated is a 2013 Chevrolet Avalanche LT Z71 Black Diamond Edition with four wheel drive, but the part number(s), procedure and tools shown in this video would be applicable for any GMT900 style 2007 thru 2014 Cadillac Escalade, Chevrolet Avalanche, Chevrolet Suburban, Chevrolet Tahoe, GMC Yukon, or GMC Yukon XL with 4WD. The 2WD trucks use the same O2 sensor part number, and procedure, but the available clearance for your tools will differ from what we show in this 4x4 type vehicles video.
The eBay and Amazon search links below are paid links, for which I may be compensated and earn a commission, if you choose to buy the parts and tools shown in this video thru them:
Lisle 12390 O2 sensor socket: ebay.us/ulIwz4 or amzn.to/44NGpck
GM 12583804 (ACDelco 213-3866) front (pre-converter) O2 sensor FEMALE connector (same part used for both LH and RH side): ebay.us/AN9Vrn or amzn.to/3yqn5Gd
GM 12589321 (ACDelco 213-3533) front (pre-converter) O2 sensor MALE connector (same part used for both LH and RH side): ebay.us/P7Rq32 or amzn.to/3K9ujko
GM 88862477 (supersedes 12377953) O2 sensor specific anti-seize: ebay.us/2HFtoo or amzn.to/3V3LObY
Tech2 scan tool: ebay.us/Ov346f
GM factory service manual: ebay.us/vA2b1P
And if I've saved you some $$ here, consider some coins for the coffee tip-jar! ko-fi.com/drshock
2007 2008 2009 2010 2011 2012 2013 2014
Chapters:
0:00 - Problem overview
1:05 - Service manual diagnostic steps
6:22 - Removing LH wheel house liner to inspect for exhaust leaks
9:30 - Going thru the checks of possible causes for the DTC
20:56 - Removing and replacing the LH sensor
26:43 - Removing RH wheel house liner to inspect for exhaust leaks & removing sensor
28:24 - Clearing DTCs with Tech2
28:48 - Final checks
#drshock #avalanche
Disclaimer: DrShock, the alias for the human content creator for this CZcams channel, is not responsible for any damages, injuries, losses, or liabilities associated with any repairs, upgrades, or maintenance performed on yours, or any other, vehicle whatsoever. No warranty, express or implied, is made as to the accuracy or completeness of any information provided within this channel. Viewing and using the “as-is" information of this channel is totally at your own risk. Always wear personal protection equipment and follow appropriate vehicle manufacturer service manual guidelines with original manufacturer parts only when performing any repairs, upgrades, or maintenance upon any vehicle.

[@patrickjohnson7801]

Parts cannon, gotta love it.

[@DrShock]

Yeah, cannons are usually only accurate to within 10%, at around 5% of the time. Better to run thru the service manual diag tree and be sure the vehicle does not come back than firing one.

[@googleuser868]

Guilty as charged. LoL
But I usually get lucky and hit on the first shot.

[@creverett9]

Where and how do you get your factory service manuals?

[@DrShock]

There's a link in the video description for where to search for used hard copy manuals, especially when they are out of print. You can also pay a subscription fee to ACDelco to get online access at www.acdelcotds.com.

[@davidaguilar3825]

Hello hopefull you can help me i got a 2014 tahoe with both p015D and P015B error codes on. So im wondering are both these codes on because i put acetone in fuel tank it was recommended by a friend to do so beacuse i had told him it felt like cats are plugged...im kinda lost and do know what to do can you help

[@DrShock]

There is a reason acetone is sold in the paint aisle, not the automotive aisle of the store. It is one of the chemicals specifically called out to *NOT* be added into fuel by General Motors - static.nhtsa.gov/odi/tsbs/2013/SB-10068973-5448.pdf
Whether that specifically caused the DTCs you have, or is a coincidence, would be impossible to determine and could only be confirmed by swapping in a known good OEM O2 sensor into either bank as a test.