Question about 2006 Dodge Ram 2500

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On my 2007 Dodge 2500 diesal the AC clutch will not engage. I found the fuse box under the hood and there is only one 10 amp fuse that says hvac. so where is the clutch relay or fuse? Which big fuse handles the AC system?

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  • Anonymous Mar 17, 2014

    On the fuses under hood how do u know if one of the big ones are bad?



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There is no relay in that box that is called the tipm or totally integrated power module. that module is controlled by a computer and should be checked with a scanner to see if you have a code for the a/c. i m having the same problem i have been told it could be low freon but can not get the clutch to engage to check the high and low pressure. Also read where it may be the diode in the clutch on the ac compressor if you have a multimeter probe the compressor a good compressor will read somewhere between 3.5 and 4.0 anything else and clutch needs to be replaced. other possibilities may be the high or low pressure switch on the line. on myh 2006 2500 diesel it is located near the plug for the compressor on bottom side of motor. hope this helps.

Posted on Feb 22, 2011


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