Jetta Sedan L5-2.5L (BGP) (2005)
3. If the DTC memory was erased, generate readiness code. Refer to --> [ Readiness Code ] See: Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes/Readiness Code.
Oxygen Sensor (O2S (In Center Three Way Catalytic Converter (TWC), Bank 1 G465, Checking
Oxygen Sensor (O2S (In Center Three Way Catalytic Converter (TWC), Bank 1 G465, Checking
NOTE:
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Vehicle must be raised before connector for Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 G465 is accessible.
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When servicing terminals in harness connector of Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 G465, use only
gold-plated terminals.
Special tools, testers and auxiliary items required
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Hand multimeter V.A.G 1526 or Multimeter V.A.G 1715
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Connector test set V.A.G 1594
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Wiring diagram
Test conditions
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The respective fuse of Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 G465 must be OK.
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Battery voltage must be at least 11.5 Volts.
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All electrical consumers such as, lights and rear window defroster must be switched off.
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The parking brake must be applied, otherwise daytime running lights are switched on.
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On vehicles with automatic transmission, selector lever must be in position "P" or "N".
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If vehicle is equipped with an A/C system, it must be switched off.
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The ground (GND) connections between engine and body must be OK.
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Exhaust system must be properly sealed between catalytic converter and cylinder head.
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Coolant temperature must be at least 80 degrees C. See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/With Generic Scan Tool/Diagnostic Mode 1: Check Measured Values
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The Oxygen Sensor (O2S) Heater - Center Three Way Catalytic Converter (TWC) Z59 must be OK, checking.
Function test
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Connect Vehicle Diagnostic and Service Information System VAS 5052. See: Computers and Control Systems/Testing and Inspection/Reading
and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/Vehicle Diagnostic and Service Information System VAS 5052, Connecting
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Start engine and run at idle speed.
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Under address word 33, select "Diagnostic mode 5: Read Lambda test results".
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Select oxygen sensor test results for Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 G465 (sensor 3) and check if
the specified values are attained. See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic
Scan Tool/Diagnostic Mode 5: Check Lambda Test Results
If specified values are achieved:
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End diagnosis and switch ignition off.
If specifications are not obtained:
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End diagnosis and let engine continue to run at idle.
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Check primary voltage.