2003 Hummer H2 Logo

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Leonard Smith Posted on Dec 04, 2017

2003 Hummer h2. Where is the TCM located? - 2003 Hummer H2

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Ajkill

Anand Kumar

  • 2035 Answers
  • Posted on Jun 08, 2008

SOURCE: hummer h2 2003 55000 mill

Remote the battery wire from the car for 20 minutes make and plug it back this will reset the computer of the car if the light is on you need to service center and get it checked....................

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Anonymous

  • 1 Answer
  • Posted on Oct 16, 2008

SOURCE: daewoo nubira transmission control module

Hi, the TCM is located at the passenger side kick panel (LHD), when you remove the kick panel you will see the ECU (engine control module) directly above it is the TCM. I hope this can help.

amf07ph..

Anonymous

  • 2 Answers
  • Posted on Oct 21, 2008

SOURCE: Transmission control module, 92 honda accord

It's under the carpet on the passenger's side floor board. There's two boxes under the access panel, I think the TCM is the one on the right? If your's is broken there are probably a couple of capacitors and a resistor that are fried and need to be replaced.

Anonymous

  • 62 Answers
  • Posted on Apr 28, 2009

SOURCE: Transmission Control Module

Before condemning the transmission, I would check the shift cable for proper operation. Look at the side of the transmission where the shift cable attaches. Have someone shift the transmission from PARK to FIRST. The engine should not be running. If the operating lever on the transmission moves, then you probably do have an internal transmission problem. 78151957.gif
If the operating lever does not move, you have a broken shift cable or it has popped of it's attachments at the operating lever or gear shift handle.
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A bad Transmission Control Module (TCM) would not keep it from shifting. In the event of a bad TCM, the transmission would go into fail safe mode and you could continue driving the vehicle.

venugopal durairajan

  • 464 Answers
  • Posted on Jul 17, 2009

SOURCE: my 2003 h2 hummer will initally not shift from

Check the linkage that goes from the shift lever down to the transmission. It sounds like somewhere along the line, it has become disconnected or has broken.
if that parts are clean then It sounds like you have a shift control solenoid that has high resistance causing the hard shift you describe. Scan the PCM for trouble codes if none are present you could have a internal transmission problem.

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