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Just had AM09 heater delivered. Get H2 code and can't get the heater to go past that.

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I have a 2006 Hummer H2 and I got a check Eng. light and I checked the code it says P0054,,,HEATER RESISTANCE BANK1 SENSOR 2. ANY IDEAS?????

probly a bad oxygen sensor--some are xpensiv--it real important cause it regulates lean or rich for fuel injectors--too lean can damage valves--usually when theres a heater issue on a sensor-it needs new--a factory scan at a private shop will show details on engine--cheap code readers dont doit

Nov 28, 2014 | 2006 Hummer H2 SUV

1 Answer

Block heater for 2004 h2

Do you get heat? If not its the heater core. The core is blocked with caulk. You can either attempt to remove the blockage with a transfusion/ liquid transfer machine or replace the core.

Jan 06, 2014 | 2006 Hummer H2

2 Answers

The heater kicks on but only blows cold air

You need to check both heater hoses for circulation when the engine is warmed up and the heater is set for heat. If both hoses are equally hot, water is circulating. This means the heater core and water valving are delivering heat. You would then look for ductwork problems that are failing to route the air under the dash past the heater core.

If the heater hoses under the hood are not equally hot, then you would check to see if the water flow valving is working and what is preventing the flow. In worst case scenario, the heater core is blocked. Try disconnecting the heater hoses and using a garden hose to verify a blockage. Reversing the flow could also clear a blocked core.

Finally, some Digital Climate controls have a diagnostic sequence which can be activated to self-diagnose some problems. This is more difficult to obtain this info because you need the matching Codes to decipher the results. Dealers would have this info.

Pleae rate my info.

Jan 03, 2013 | 1995 Ford Thunderbird

1 Answer

Heater control dont work

or is it not blowing air all together? If so, try replacing the switch.

Jan 12, 2012 | 2005 Hummer H2

2 Answers

Hey i have a hummer h2 2004 and i have the check engine ligh on the code is p0135 (bank 1, sensor1) what sensor is it? thanks

Hello: Bank 1 tells you it is the side of the engine that has #1 cylinder (Which on your truck is the drivers side) SENSOR 1 IS THE SENSOR FOR THAT BANK IN FRONT OF THE CATALYTIC CONVERTER. This code tells us the heater in the sensor has a problem. You should replace the sensor. (Experience: I highly recommend a GM part. The GM engine control module is very sensitive to 02 sensors). Make sure the truck end of the harness connector is clean and not damaged. After replacing sensor you will have to have the code cleared. (auto Zone, Advance Auto may can do it and not charge you.

Jan 08, 2011 | 2003 Hummer H2

1 Answer

I have a hummer h2 2003 whith a p0135 heater mal funtion bank 1 sensor 1

What you have to do is replace the o2 sensor on bank 1 sensor 1.This is the front sensor on the left side on the exhaust system.Left side is bank 1 and right side is bank 2.Make sure the connections are good first.Usually it`s the internal heater in the o2 sensor.Hope this helps.Good luck.

Dec 12, 2009 | 2003 Hummer H2

1 Answer

H2 seat heaters wont work

yeah!!!! check the relay ,, ot should be under the hoos look at the diagram on the box to tell you which one.. swap it with anoter one from the box and check to see if its working..

Feb 07, 2009 | 2003 Hummer H2

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