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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15181
Experience:  GM Grand Master Technician 2007. 14 years experience.
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2005 chevy express 2500 engine code p0053 p0054 p0059 p0060

Customer Question

2005 chevy express 2500 engine code p0053 p0054 p0059 p0060
Submitted: 1 year ago.
Category: Chevy
Expert:  Jared D replied 1 year ago.

Does the vehicle have an aftermarket remote start system?

Customer: replied 1 year ago.
No. all OEM. No aftermarket parts, option added.
Customer: replied 1 year ago.
Are you there, Jared?
Expert:  Jared D replied 1 year ago.

I'm looking up diagrams for any common circuits that might cause all o2 sensors to set like that.

Aftermarket electronics will sometimes interfere with the O2 sensor heater circuit, but if it's all stock then I'll have to do some research to see what it could be.

You replaced all O2 sensors with GM parts?

Expert:  Jared D replied 1 year ago.

Do you have a scan tool to monitor O2 sensor data?

If so, try the following:

Allow the engine to cool for a hour.
Do NOT turn the key on. Connect and set up a scanner. Locate and monitor the HO2S B1S2 and B2S2. Then turn the key on, engine off. Monitor the amperage value.
If the amperage displayed exceeds 1.375 amps, replace the O2 sensor/s.

Customer: replied 1 year ago.
No. I bought all O2 sensors thru eBay probably Made in China warrantee to work and all connectors works fine. Also same color codes.
Customer: replied 1 year ago.
If amperage is within limit which means less than 1.375 amps then what else could you suggest. Do we continue on later?
Customer: replied 1 year ago.
If remember right, my scanner records B1S2, B2S2 while motor is running.
Customer: replied 1 year ago.
Better end this chat now. Can I get back to you., Jared D with more facts ready to get the solution?
Customer: replied 1 year ago.
Are you there, Mr. Jared?
Expert:  Jared D replied 1 year ago.

Sorry. I got stuck in traffic on the way home. You can respond at your convenience, don't worry about the chat ending or anything.

If the sensors are all in range then there has to be some kind of wiring issue that intermittently interferes with communication with the pcm. I'll look up some diagrams of the pcm so we can trace each circuit. Do you have multi meter?