Operation CHARM
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Audi
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1990
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90 Quattro 20V L5-2309cc 2.3L DOHC (7A)
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Repair and Diagnosis
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Powertrain Management
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Transmission Control Systems
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Relays and Modules - Transmission and Drivetrain
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Relays and Modules - Differential
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Control Unit
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Locations
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Component Locations
Component Locations
Differential Lock Control Unit (Under Rear Seat)
:
A-
blue, to vacuum servo
B-
yellow, to vacuum servo
C-
violet, from intake manifold