Jetta L4-2.0L (AZG) (2004)
Checking
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Switch ignition on.
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Press button (arrow) for Duty Cycle measurement (modulation ratio) on ignition tester VAG 1767.
Test results, evaluating
NOTE: If a malfunction cannot be located, check DTC memory of Engine Control Module (ECM) and the Transmission Control Module (TCM) using
VAG 1551/1552 Scan Tool. When doing so, note that DTCs related to high pressure sensor -G65- functions may be called-out as "A/C pressure switch
-F129".