A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009)
Engine Control Module: Service and Repair
Generic Scan Tool
Engine Control Module, Replacing
Special tools, testers and auxiliary items required
‹› Heat gun.
‹› When the Engine Control Module (ECM) (J623) electrical harness connectors are disconnected, the adaptation values are erased and the DTC
memory content remains intact.
Work procedure
Check the identification of the previous Engine Control Module (ECM) (J623) as follows:
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Connect the scan tool.
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Switch the ignition on.
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Using the scan tool, select "Vehicle information".
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Select " Calibration Identification" in vehicle information.
The electronic control module identification number will be displayed, e.g. 06A906032NA 4983
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Record the electronic control module identification number.
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End diagnosis and switch the ignition off.
Removing
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Remove the rubber seal in the direction of the - arrow -.
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Remove the plenum chamber cover - 1 -.
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Using a screwdriver, remove wiper arm caps- 3 - from wiper arms.
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Loosen wiper arm nuts - 4 - several turns.
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Loosen wiper arms - 2 - from wiper axle by tilting slightly.
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Remove wiper arm nuts completely and remove wiper arms.
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Remove securing clips - 1 - and cowl - 5 -.