Passat L4-1.8L Turbo (AWM) (2004)
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Check wire connections from
Engine codes AEB, ATW: Terminal 1
Engine code AUG, AWM: Terminal 3to Fuel Pump (FP) Relay -J17- according to wiring diagram.
If voltage was approximately same as battery voltage:
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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. Engine Control Module ECM) is not connected. See:
Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool
Connecting/Test Box, Connecting For Wiring Test
Vehicles with engine code AEB
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Check wire between test box and 4-pin connector for open circuit according to wiring diagram.
Terminal 2 + socket 27
Wire resistance: max: 1.5 ohms
Vehicles with engine code ATW
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Check wire between test box and 4-pin connector for open circuit according to wiring diagram.
Terminal 2 + socket 5
Wire resistance: max: 1.5 ohms
Vehicles with engine code AUG, AWM