Question about 2007 Hummer H3 SUV

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P0449 Trouble codes h3 Hummer - 2007 Hummer H3 SUV

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: 2006 H3 Hummer AC/Heater Fan Motor

I brought my 2006 H3 in to the dealer for the same thing. My blower stopped working all together but it started as an intermittent problem. He said he had to replaced a diode or resistor either behind the switch on the dash that controls the fan or on the fan motor itself. Have not had a problem since but that was only about 4 months ago.

Posted on Apr 09, 2009

goofduck
  • 490 Answers

SOURCE: Hummer H3 rear lights staying on

if it is the brake lights that are on check the brake light switch on the brake pedal

Posted on Apr 21, 2009

carputers
  • 255 Answers

SOURCE: 2008 Hummer H3 The trackion failed light on

clean abs sensors at each wheel.

Posted on Sep 08, 2009

  • 114 Answers

SOURCE: how do i shut off my change oil light in my h3

I'm not 100% on this but I think it's like a lot of GM's; turn the key to the "on" position(not running), stomp the gas pedal to the floor 3 times within 5 seconds & the light should flash & go out.

Posted on Sep 24, 2009

  • 1 Answer

SOURCE: 2006 H3 Hummer fan problem

Hi if your internal fan not work in any position well i fixed up myself easy and save your money.
locate the fan motor air just outside right courtesy drawn document in front of passenger. go from down and look up you will see a motor with a big connector white with 2 screw secure inside the motor block. loose the two screws and pull out gently the connector from motor fan block. you will see a green multiresistor connected with this big connector. Usually the first + voltage connector is burnet out. disconnect the connector pull from resistor and check for any burn. in my case the first pin was burned out completely
you can buy another connector or you can clean the burned connector take out form connector weld a small copper cable of 5 mm dia from resistor to the burn cable and reconnect the connector without buy a new one. after replace again the resistor in the hole of motor blow with the 2 screw.
Done all work again without buy another new connector.
Gabriel from Italy Turin
H3 hummer 2007
loveling one and Humvee owner

Posted on Jun 11, 2010

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Head lights wont turn off 06 h3 hummer


If you pull the headlamp relay in under hood fuse box, that should kill the headlamps until you figure out the problem? I don't know if relay could be faulty? I'd want to check relay wiring circuit for ground?
Your bcm grounds the coil side of headlamp relay in order to energize. I'm not saying bcm has a problem? The bcm receives input from headlamp/dimmer switch telling it the headlamp relay should be grounded. You might check for bcm or communication trouble codes.
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