P1153 GMC Code - HO2S Insufficient Switching Bank 2 Sensor 1
Quick Answer
The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open or shorted, Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1153 GMC indicates HO2S Insufficient Switching Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open or shorted, Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1153 GMC Description
The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the heated oxygen sensor rich-to-lean counts or the lean-to-rich counts are less than a calibrated value greater than 100s.
What are the Possible Causes of the DTC P1153 GMC?
- Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
- Heated Oxygen Sensor Bank 2 Sensor 1 harness is open or shorted
- Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection
- Low or high fuel system pressure
- Fuel contamination
- Faulty fuel injectors
- Exhaust gas leaks
- Engine vacuum leaks
How to Fix the DTC P1153 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1153 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1153 GMC code?
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Need Help with the Code?
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Information for Specific GMC Models
- P1153 2014 GMC Sierra — HO2S Insufficient Switching Bank 2 Sensor 1
- P1153 2015 GMC Sierra — HO2S Insufficient Switching Bank 2 Sensor 1
- P1153 2016 GMC Sierra — HO2S Insufficient Switching Bank 2 Sensor 1
- P1153 2017 GMC Sierra — HO2S Insufficient Switching Bank 2 Sensor 1
- P1153 2018 GMC Sierra — HO2S Insufficient Switching Bank 2 Sensor 1
Frequently Asked Questions about P1153 GMC Code
No Frequently Asked Questions about P1153 GMC Code found.
Discuss the causes and fixes for P1153 GMC OBDII Code
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Well I'm in quite the bind, I have an 02 corvette that is constantly throwing the engine code p1153 for my first O2 sensor on the passenger side. Which means the O2 sensor is not switching from rich to lean enough times.. I have gone through three sensors and even a new CPU! I've taken it to my local GM dealership where they couldn't figure it out either! Only thing I can think of is I changed my head gaskets without taking them to a machine shop to get decked and maybe I have coolant leaking into the exhaust giving a faulty reading.. Because I do smell a little coolant. Would that effect the 02 sensor in that way? Any help would be greatly appreciated for this is starting to piss me off! Thanks!
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Yes. It's possible that the coolant leak is contaminating the O2. Coolant, engine oil and/exhaust leaks are listed in the factory service manual as possible causes for setting the P1153 code.
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Gud night I have a 2001 chevy tahoe with the same code p1153 need help I put 4 new sensor still the same need your help plese
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Other than the O2 sensors I have seen any other problems triggering the P1153 code. Do you have any other symptoms or codes? any exhaust leaks?
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I am having the same issue also a p1133 code on bank 1 just put new Bosch o2 sensors in and still having the same codes showing up any help would be appreciated.
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Any other codes or symptoms? other than the oxygen sensor I haven't seen any other component triggering the P1133 code. I have also check a national database of repair for your model year and the sensor is the only thing that fails. Are there any leaks exhaust leaks?
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