Passat Sedan 4Motion W8-4.0L (BDP) (2002)
Engine Control Module: Service and Repair
With Manufacturer's Scan Tool
Engine Control Module (ECM), Replacing
Engine Control Module (ECM), Replacing
Work sequence
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Print out control module identification of old engine control module, Engine control module DTC memory, checking and erasing.
NOTE: If the control module version installed in the vehicle is not displayed, replace the engine control module. Current engine control module part
number.
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Switch off ignition.
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Remove wiper arms and cowl panel.
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Remove screws at cover of protective housing for control modules - arrows - and remove cover.
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Carefully pry off retainer bar with a screwdriver - arrow -.
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Release and pull off electrical connector for engine control module.
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Remove old engine control module and insert new one.
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Connect electrical connector and latch into place.
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Adapt new engine control module. "Guided fault function."
Functions and Components, Adapting
Functions And Components, Adapting
Special tools, testers and auxiliary items required