code # meaning question.

1999 GMC TRUCK
4WD • AUTOMATIC
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OZZY420
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hello my friend has a 1999 gmc 3500 diesel truck and the check engine light turned on so i checked it with a code reader and it showed code # 1810 manufacture controlled transmission. can someone tell me what that means.
Dec 12, 2010 at 11:07 PM
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RASMATAZ
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This code has to do with the transmission fluid pressure (TFP) sensor circuit.
Could be caused by a bad sensor or may be due to a lack of transmission fluid
Dec 12, 2010 at 11:11 PM
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OZZY420
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where is the pressure sensor
Dec 12, 2010 at 11:26 PM
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RASMATAZ
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The fluid pressure sensor/switch -Its contained within the transmission valve body

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Dec 12, 2010 at 11:33 PM