Question about GMC Denali

2 Answers

Check engine (outline of engine block) light is on. Had On-Star conduct dianostic and they indicated that trouble codes #P0053 and #P0135 were the problem. What does these codes mean and how serious and costly is the problem?

Posted by on


2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 3,489 Answers

  • P0053 HO2S Heater Resistance (Bank 1, Sensor 1)
  • P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
  • Possible Solutions
    • Repair short or open or high resistance in wiring harness or harness connectors
    • Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)

    What this means is that the first O2 sensor either has a fault inside of itself or the wire has been damaged. Have the vehicle inspected and quite possibly the O2 sensor replaced. This can create poor fuel economy and long term damage if not addressed. The part can run somewhere between $75 (for an aftermarket replacement such as Bosch which is very good) - $150 for a dealer replacement plus labor. Quite a minor repair but does need to be done. If you wish to tackle this yourself, let me know.

    Posted on May 22, 2011

    • Level 2:

      An expert who has achieved level 2 by getting 100 points


      An expert that got 10 achievements.


      An expert that got 5 achievements.


      An expert that has over 500 points.

    • Expert
    • 217 Answers

    99 percent of the time it is the oxygen sensor.disconnect the sensor and check for b+ voltage at the connector if you have voltage it is your oxygen is the first sensor in the exhaust pipe on the drivers side

    Posted on May 22, 2011

    • Terry Long May 22, 2011

      the sensor is not real expensive.good luck.



    1 Suggested Answer

    • 2 Answers

    SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

    a 6ya expert can help you resolve that issue over the phone in a minute or two.
    Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
    the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
    click here to download the app (for users in the US for now) and get all the help you need.

    Posted on Jan 02, 2017

    Add Your Answer

    Uploading: 0%


    Complete. Click "Add" to insert your video. Add



    Related Questions:

    1 Answer

    06 Chevy Silverado code p0053 and p0135

    DTC P0053 HO2S Heater Resistance Bank 1 Sensor 1
    • DTC P0135 HO2S Heater Performance Bank 1 Sensor 1
    Important: Whenever the heated oxygen sensor (HO2S) heaters are commanded ON with a scan tool, they will continue to be pulsed ON once per second until the ignition is turned OFF for 30 seconds.
    Turn ON the ignition, with the engine OFF.
    Command the HO2S heaters ON with a scan tool.
    Wait 15 seconds to allow the HO2S heater current to stabilize.
    Observe the affected HO2S Heater Current parameter with a scan tool.
    Is the HO2S Heater Current parameter within the specified range?
    0.25-1.375 A

    Sep 10, 2016 | 2006 Chevrolet Silverado

    2 Answers

    Trouble code p0134, p0135 p0053 p0030

    P0134 - O2 Sensor Circuit No Activity Detected Sensor 1 Bank 1
    P0135 - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
    P0053 - O2 Heater Resistance Bank 1 Sensor 1
    P0030 - O2 Heater Control Circuit Bank 1 Sensor 1
    You need to replace the O2 Sensor Bank 1 Sensor 1
    Carquest can help you get the correct part and help you locate it.

    Apr 01, 2014 | 2006 GMC Envoy Xl

    1 Answer

    What's wrong with my 1995 Toyota Avalon with Codes P0135 and P0773?

    P0135 indicates that the heated oxygen sensor 1 on bank 1 is not functioning properly.

    This is the torque converter lockup solenoid. Is the converter locking up? The solenoid can be accessed by removing the trans oil pan. Coil resistance is 10.16.9 ohm, check to see if the solenoid operates when 12DC is applied.

    Can also be the wiring to the solenoid from ECU.

    Jun 01, 2012 | 1995 Toyota Avalon

    1 Answer

    Check engine light on- auto zone scanner shows error code p0053 probable cause: 1.-check circuit fuse 2.-relay defective 3.-check circuit wiring Where are fuse and relay located?

    The code P0053 is for your Bank 1 Oxygen Sensor, the closest Oxygen Sensor to the engine, connected to the Exhaust. Replace your Oxygen Sensor, clear the code, and see if it comes back.

    Mar 12, 2011 | Chevrolet Suburban 1500 Cars & Trucks

    1 Answer

    Diagnostic code p0135

    What engine is in this vehicle? I assume the avalon would be a 3.0L or similar V6 engine. Bank 1 sensor one indicates one of the primary O 2 sensor controlling a/f ratio. Sensor one bank one would be the sensor located in the Front manifold, closest to the engine. Hope this solves your issue. I would first check the conector at this sensor for corrison before buying a new sensor.

    Sep 29, 2008 | 1996 Toyota Avalon

    Not finding what you are looking for?
    Cars & Trucks Logo

    Related Topics:

    81 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top GMC Experts


    Level 3 Expert

    76846 Answers


    Level 3 Expert

    1311 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22246 Answers

    Are you a GMC Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides