Jetta L4-2.0L (AZG) (2004)
Connect diode test lamp to the connector terminals of the fuel injector to be checked.
Vehicles with engine code AVH, AZG
Connect diode test lamp to the connector terminals of the fuel injector to be checked.
Continuation for all vehicles
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Operate starter and test activation of fuel injector. LED should flicker.
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Switch ignition off.
If LED does not flicker:
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Connect test box to control module wiring harness, connect test box for wiring test. See: Computers and Control Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box, Connecting For Wiring
Test
Vehicles with engine code AEG
Check wires between test box and 2-pin connector for open circuit according to wiring diagram. Wire resistance: max: 1.5 Ohms