New Beetle L4-2.0L (AZG) (2003)
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Remove protective cover -arrows and separate 6-pin connector (black) - 1- to oxygen sensor before catalyst (G39).
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Check wiring for open circuit between test box and 6-pin connector (to control module) according to wiring diagram.
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Terminal 1 + socket 70
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Terminal 2 + socket 71
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Terminal 5 + socket 51
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Terminal 6 + socket 52
Wire resistance: Max. 1.5 Ohms
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Additionally check wires all for short to one another.
Specification: Infinity Ohms
If no wiring problem is detected:
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Replace oxygen sensor before catalyst (G39).
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Check DTC memory, if necessary, repair any malfunctions and then erase DTC memory. Refer to "Displaying and Reading Trouble Codes/With
Manufacturers Scan Tool/DTC Memory Checking and Erasing" See: Computers and Control Systems/Testing and Inspection
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Read readiness code. If DTC memory has been erased or engine control module was disconnected from permanent positive, readiness code must
be generated again.
Refer to "Monitors, Trips and/or Drive Cycle/Readiness Code, Displaying" See: Computers and Control Systems/Testing and Inspection
Refer to "Monitors, Trips and/or Drive Cycle/Readiness Code, Generating" See: Computers and Control Systems/Testing and Inspection
With Generic Scan Tool
Check Oxygen Sensor And Oxygen Sensor Regulation Behind Catalytic Converter
NOTE:
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Vehicle must be raised before connector for oxygen sensor is accessible.
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When servicing terminals 3 and 4 in harness connector of Heated Oxygen Sensor (HO2S), use only gold-plated terminals.
Recommended special tools and equipment
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VAG 1526 multimeter or VAG 1715 multimeter