Passat L4-1.8L Turbo (AWM) (2004)
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Remove cover of protective housing for control modules.
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Using a screwdriver, carefully pry off retaining bracket (arrow).
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Disengage connector from Engine Control Module (ECM) and then disconnect it.
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Remove old control module and insert new one.
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Check old coding and code new control module.
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Adapt new control module to throttle valve control module.
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In vehicle with cruise control: Check whether this function is activated. If "G" does not appear in control module identification, activate cruise
control.
Vehicles with automatic transmission:
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Adapt kick-down shift point
Continuation for all vehicles
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Check DTC memory of new Engine Control Module (ECM) and erase if necessary.
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Perform idle test
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Re-generate readiness code.
Engine Control Module (ECM), Adaptation
Engine Control Module (ECM), adaptation procedure when replacing
NOTE:
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The Engine Control Module (ECM) is adapted to the electronic controls of the immobilizer in the instrument cluster. For replacement of
component, a new adaptation must be performed.
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If there are no authorized ignition keys available, new ignition keys must be prepared and adapted
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Secret number must be available, if not, See "Determining secret number",
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Adaptation can be interrupted using the "C" button of the VAG 1551 scan tool.
Requirements