Jetta Wagon L4-1.8L Turbo (AWP) (2005)
Engine Control Module: Service and Repair
With Generic Scan Tool
Engine Control Module (ECM), Replacing
Procedure
Check control module identification of the previous Engine Control Module (ECM) as follows:
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Connect diagnostic tester.
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Switch ignition on.
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Under address word 33, select "Diagnostic mode 9: vehicle information".
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Select vehicle information "Test-ID 04: Calibration Identification".
Control module identification will be indicated, e.g.:
022906032CR 0005
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End diagnosis and switch ignition off.
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Remove wiper arms and wind cowl.
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Disengage connector from control module and then disconnect it.
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Press mounting bracket (arrow) toward left and pull control module out.
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Insert new control module into bracket.
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Install connector from control module and engage.
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Check whether new control module identification matches old control module identification.
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Generate readiness code.