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Tool Hut
Tool Hut, ASE Certified Technician
Category: Chevy
Satisfied Customers: 494
Experience:  Owner of a mobile diagnostics company assisting auto technicians with difficult vehicles
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I am getting a P0036 Code on my Chevy Silverado -2008, 1500,

Customer Question

I am getting a P0036 Code on my Chevy Silverado -2008, 1500, using a Onnova OBD PC-Link. Also says HO2S Heater Control, Circuit (Bank 1, Sensor 2) I have change the passenger sided O2 Sensors 2X now, wiring is good.
Submitted: 10 months ago.
Category: Chevy
Expert:  Tool Hut replied 10 months ago.

Hi, My Name is ***** ***** for posting your question to just answer. I am a independent contractor for just answer, and ASE Certified Master Auto Technician with 20 years experience. I am confident we can resolve your problem together.Please remember I don't know your skill level. I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies to get to a satisfactory resolution.There will probably be some equipment needed for a proper diagnosis. If you are not comfortable with this or do not have any test equipment please let me know ASAP. I also try to give all of the information you may need expecting a positive rating. I am not compensated for my time until you leave a positive rating. Your rating should be based on the service you received.

The bank 1 sensor 2 is the sensor after the converter on the drivers side.

Expert:  Tool Hut replied 10 months ago.

There is also a O2 heater reset procedure that needs to be done with a scanner

Customer: replied 10 months ago.
I have changed both sensors, the one before and the after the catolitc converter. I have reset the computer using my tester and as I am driving, I do not get the code. When I shut off the vehicle and turn it back on, the code re appears. The catolic converters have been changed recently as this code caused the passenger side to plug.
Expert:  Tool Hut replied 10 months ago.

One of the wires should have voltage with the key on. Can you confirm voltage?

Also it is not a code reset that needs to be done it is a heater reset. I doubt your Onnava has that ability.

Customer: replied 10 months ago.
Ok, so what you are telling me is that when the key is on, I should test the connector that runs to the O2 Sensor. One wire should have some voltage. I am assuming you mean 12 volts, or less? And how do a heater reset?
Expert:  Tool Hut replied 10 months ago.

Yes 12 volts. Key on.

a tech 2 can so the heater reset. It is the only scanner I know that can. It is a heater resistance relearn.

Customer: replied 10 months ago.
Ok, I will check the voltage - have to do it tomorrow. So if no voltage - then what can I look at? And if voltage - then still I have something wrong with the sensor? I will a have to take to repair shop for reset. Not going to purchase another device for something that I am not understanding.
Customer: replied 10 months ago.
Hello?
Expert:  Tool Hut replied 10 months ago.

I am looking at info. be there in a few

Expert:  Tool Hut replied 10 months ago.

Underhood fuse box O2-B check fuse. if no voltage. If voltage likely a reset will assist

Customer: replied 10 months ago.
Ok. I will try these things and hopefully I will see something happen. Thank you.
Expert:  Tool Hut replied 10 months ago.

OK.I am only available until approx 4:30pm tomorrow. I can opt out and let someone else help if you prefer.