New Beetle L4-1.8L Turbo (AWP) (2003)
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Connect diode test lamp to the connector terminals of the fuel injector to be checked.
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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
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Use wiring diagram to check wires between test box and harness connector for open circuits or short circuits to Ground (GND) or B+.
fuel injector 1: Terminal 2 + socket 96
fuel injector 2: Terminal 2 + socket 89
fuel injector 3: Terminal 2 + socket 97
fuel injector 4: Terminal 2 + socket 88
Wire resistance: max. 1.5 ohms
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Also check wires for short circuit to B+ and Ground (GND).
Specified value: Infinite Ohms
If there is no malfunction in wire connection:
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Replace Motronic Engine Control Module (ECM) -J220-.