Jetta Sedan L5-2.5L (BGP) (2005)
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Connect multimeter V.A.G 1526 for voltage measurement to terminals 3 + 4 of connector to Motronic Engine Control Module (ECM) J220 and
measure primary voltage.
Specification: 0.400 to 0.500 V
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Switch off ignition.
If specification is obtained:
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Replace Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC) G130.
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Erase DTC memory for Motronic Engine Control Module (ECM) J220. See: 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: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness
Codes/Readiness Code, Generating
If specification is not obtained:
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Test oxygen sensor wires.
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Connect test box to Motronic Engine Control Module (ECM) J220 wiring harness. See: 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 BGP
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Check wires between test box and 4-pin connector for open circuit according to wiring diagram.
Contact
Test box socket
3
68
4
69
Wiring resistance: max. 1.5 Ohms
Vehicles with engine code BGQ