Jetta L4-2.0L (AZG) (2004)
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Press Q button to enter input
Display will appear as shown (1 to 4 = Display zones)
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Set engine speed with VAG 1788/10 speed adjuster between 2800 and 3200 rpm.
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Maintain engine speed between 2800 and 3200 rpm.
^
Value in display zone 4 changes from "Test OFF" to "Test ON".
^
Value in display zone 2 minimum 352.0C.
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Continue maintaining engine speed between 2800 and 3200 rpm
Display zone 4 changes to "Cat. B1 OK".
Note: Catalyst diagnostic lasts about 100 seconds. If test does not complete after 750 seconds, adjust engine speed within range of 2800 to 3200
rpm.
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Remove VAG 1788/10 engine speed adjuster from throttle pedal.
If "Cat. BI not OK" appears in display zone 4:
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Check Diagnostic Trouble Code (DTC) memory.
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Display Readiness code.
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Readiness code must be reset if FCM is subject to low voltage with ignition ON or if fault memory is erased.
If specification "Cat 131 OK" obtained:
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Press --> button.
Display will appear as shown
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Press 0 and 6 buttons to select Function 06: " End transfer"
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Press Q button to enter input