New Beetle L4-2.0L (AVH) (2005)
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Connect multimeter to connector terminals 2 + 6 for voltage measurement.
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Switch ignition on.
Specified value: at least 4.5 V
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Switch ignition off.
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Connect test box to control module wiring harness. connect test box for wiring test. See: Testing and Inspection/Reading and Clearing Diagnostic
Trouble Codes/Scan Tool Connecting/Test Box, Connecting For Wiring Test Engine Control Module (ECM) is not connected.
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Check wires between test box and 6-pin connector for open circuit according to wiring diagram:
Terminal 1 + test box socket 92
Terminal 2 + test box socket 83
Terminal 3 + test box socket 117
Terminal 4 + test box socket 84
Terminal 5 + test box socket 118
Terminal 6 + test box socket 91
Wire resistance: max. 1.5 Ohms
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Check wires for short circuit to each other, to vehicle Ground (GND) and to battery + and Ground (GND).
Specified value: Infinite Ohms
If no malfunctions are found in wires:
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Check voltage supply of Engine Control Module (ECM).
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Erase DTC memory of Engine Control Module (ECM). Diagnostic mode 4: Reset/erase diagnostic data. See: Testing and Inspection/Scan Tool
Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase Diagnostic Data
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Generate readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes