Passat Syncro Wagon V6-2.8L (ATQ) (2000)
Specified value: 11.0 to 15.0 V
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Switch ignition off.
If there is no voltage:
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Check wire between 4-pin connector terminal 3 and Fuel Pump (FP) Relay -J17- for open circuit according to wiring diagram.
Wire resistance: max: 1.5 Ohms
Continuation for all vehicles
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Check signal and Ground (GND) wires of Mass Air Flow (MAF) sensor.
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. 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 AHA
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Check wires between test box and 4-pin connector for open circuits according to wiring diagram.
Terminal 1 + socket 13
Terminal 2 + socket 12
Wire resistance: max: 1.5 Ohms
Vehicles with engine code ATQ
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Check wires between test box and 4-pin connector for open circuits according to wiring diagram.
Terminal 1 + socket 53
Terminal 2 + socket 27
Terminal 4 + socket 29
Wire resistance: max: 1.5 Ohms
Continuation for all vehicles
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Also check wires for short circuits to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinity Ohms
If no DTCs are found in wires:
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Replace Mass Air Flow (MAF) Sensor -G70-, item no. 7
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes