Operation CHARM
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Mercedes Benz
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1990
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420SEL (126.035) V8-4.2L (116.965)
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Repair and Diagnosis
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Powertrain Management
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Locations
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Idle Speed
Idle Speed
Fig. 4 CIS-E System Components:
The idle speed control unit is located behind the passenger's floor panel.
