Golf L4-2.0L (BEV) (2004)
Checking signal and Ground wires of Mass Air Flow (MAF) sensor
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Connect test box to control module wiring harness, connect test box for wiring test.
Vehicles with engine code AEG
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Check wires between test box and 5-pin connector for open circuit according to wiring diagram.
Terminal 3 + socket 12
Terminal 4 + socket 11
Terminal 5 + socket 13
Wire resistance: max. 1.5 Ohms
Vehicles with engine code AVH, AZG, BBW, BEV
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Check wires between test box and 5-pin connector for open circuit according to wiring diagram.
Terminal 3 + socket 27
Terminal 4 + socket 53
Terminal 5 + socket 29
Wire resistance: max. 1.5 Ohms
Continued for all vehicles
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Check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinite Ohms
If no DTCs are found in wires:
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Replace Mass Air Flow (MAF) sensor -G70-.
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data. See: Powertrain Management/Computers
and Control Systems/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: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes