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2006 AC issue

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Old Sep 24, 2025 | 12:47 AM
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2000 ML55, 1997 Cummins, 2000 Dakota
2006 AC issue
Hi gents. Had an AC issue, full refrigerant but according to gauges the compressor wasnt cycling on and off. Googling around, I decided to try and change the compressor control valve. Filled it back up, no dice.

Ok, broke down and got a foxwell scanner. Reading 7bar refrigerant pressure. Cause for compressor not engaging is b12 pressure sensor.

I am confused, its showing 7 bar, is that not enough pressure to cycle compressor on? I am about 33oz in.

Thanks!
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