Thread: MAS Control Unit-what all does it do?
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Old 02-24-2004, 08:23 PM
brewtoo brewtoo is offline
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Location: AL
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MAS Control Unit-what all does it do?
1991 300E.

I know MAS unit controls the fuel pump relay and A/C compressor and maybe has something to do with transmission kickdown.

Anything else?
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