Passat V6-2.8L (ATQ) (2004)
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Check DTC memory, repair any malfunctions and then erase DTC memory. Displaying and Reading Trouble Codes/With Manufacturer Scan
Tool/DTC Memory Checking and Erasing
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Read readiness code. If DTC memory was erased or Engine Control Module (ECM) was disconnected from B+ supply, readiness code must be
re-generated. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness
Codes
Oxygen Sensor Heater For Oxygen Sensors Before Catalytic Converter, Checking
Oxygen Sensor Heater For Oxygen Sensors Before Catalytic Converter, Checking
NOTE: When servicing terminals in harness connector of oxygen sensor, use only gold-plated terminals.
Recommended special tools and equipment
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V.A.G 1526 multimeter or V.A.G 1715 multimeter
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V.A.G 1594 connector test kit
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Wiring diagram
Test requirements
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The respective fuses of Heated Oxygen Sensor (HO2S) -G39- and Heated Oxygen Sensor (HO2S) 2 -G108- must be OK
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Ignition switched off.
Test sequence
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Disconnect 4-pin harness connector to the respective oxygen sensor:
Heated Oxygen Sensor (HO2S) -G39-, 4-pin harness connector (black, arrow).