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Airmatic won’t turn on no power to the fuse what to look for

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Old Sep 25, 2018 | 08:09 AM
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2007s550 4matic w221
Airmatic won’t turn on no power to the fuse what to look for
I ahve a 2008 s550 4matic had the back level brake so I fixed it now I can’t get the system to turn back on bypass the pump and I can get it to turn on
hit the raise button on the dash and I don’t even get the display anymore anyone out there have any idea what to look for
please help
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Old Sep 25, 2018 | 03:40 PM
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konigstiger
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'71 Pinto
Revisit front SAM (engine compartment) - control unit f46, compressor f56, compressor B relay.
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Old Sep 25, 2018 | 04:39 PM
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2007s550 4matic w221
I have checked all that fuse and relay still nothing any other thought
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Old Sep 26, 2018 | 10:57 AM
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konigstiger
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From: North Scottsdale, AZ
'71 Pinto
Best to have someone pull fault codes using MB DAS. See attachment covering control unit inclusive of block diagram showing how system operates.
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