New Beetle L4-1.8L Turbo (AWP) (2003)
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Test Requirements
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The respective fuses of Heated Oxygen Sensor (HO2S) -G39- must be OK.
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Ignition switched off.
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Unscrew protective cover (arrows) and disconnect 6-pin harness connector (black) -1- to Heated Oxygen Sensor (HO2S) -G39- before catalytic
converter.
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Set multimeter for resistance measurement and connect it to terminals 3 + 4 at connector for oxygen sensor. Check oxygen sensor heater for
continuity.
Specified value: 2.5...10 ohms(at room temperature)
If an open circuit is found in the oxygen sensor heater:
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Replace Heated Oxygen Sensor (HO2S) -G39- Bank 1 before catalytic converter, item 8
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data. See: Testing and Inspection/Scan Tool
Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase Diagnostic Data
-Generate readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If oxygen sensor heater has continuity:
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Check voltage supply and wiring
Checking Voltage Supply And Wiring
