Jetta L5-2.5L (BGP) (2006)
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Remove the Motronic Engine Control Module (ECM) J220.
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Using a Multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 electrical harness connector terminals
to the Motronic Engine Control Module (ECM) J220 electrical harness connector T121 terminals for resistance.
Engine code BGP
Oxygen Sensor (O2S) G130
Motronic Engine Control Module (ECM)
electrical harness connector
J220 electrical harness connector
terminals
T121 terminals or test box sockets
3
68
4
69
Engine code BGQ
Oxygen Sensor (O2S) G130
Motronic Engine Control Module (ECM)
electrical harness connector
J220 electrical harness connector
terminals
T121 terminals or test box sockets
3
10
4
11
Specified value: 1.5 Ohms Max.
If the specification was not obtained:
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Check the wiring for an open circuit, short circuit to each other, Battery (+), and Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring:
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Erase the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 04 - Erase DTC Memory
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Perform a road test to verify repair.
If the DTC does not return:
Repair complete, Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes
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End of diagnosis.
If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK:
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Replace the Motronic Engine Control Module (ECM) J220.
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Assembly is performed in the reverse of the removal.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 04 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
End of diagnosis.