Jetta Sedan L4-1.9L DSL Turbo (BEW) (2005)
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Check Ground (GND) activation of oxygen sensor heater.
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Connect test box to control module wiring harness, connect test box for wiring test. 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
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Connect adapter cable (V.A.G 1598/39-2) to test box (V.A.G 1598/42).
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Check wires between test box and 6-pin connector (to control module for Diesel-Direct fuel injection system) for open circuit according to wiring
diagram.
Terminal 3 + socket 51
Wire resistance: max. 1.5 Ohms
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Check wires for short circuit to B+ or Ground (GND).
Specified value: Infinite Ohms
If no malfunctions are found in wires:
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Replace Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248-.
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Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes