volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Oxygen Sensor and Oxygen Sensor Control Before Catalytic Converter, Checking|Page 1215 > < Oxygen Sensor and Oxygen Sensor Control Before Catalytic Converter, Checking|Page 1213
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Terminal 1 + socket 70
Terminal 2 + socket 71
Terminal 5 + socket 51
Terminal 6 + socket 52

Wire resistance: max. 1.5 Ohms

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Check wires for short circuit to B+ and to Ground (GND).

Specified value: Infinite Ohms

If no malfunctions are found in wires:

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Replace Heated Oxygen Sensor (HO2S) 1 -G39- bank 1 before catalytic converter.

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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data. See: Powertrain Management/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: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes.

Oxygen Sensor and Oxygen Sensor Control Before Catalytic Converter, Checking|Page 1215 > < Oxygen Sensor and Oxygen Sensor Control Before Catalytic Converter, Checking|Page 1213