volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Operational Readiness of Oxygen Sensor After Catalyst, Checking|Page 2101 > < Operational Readiness of Oxygen Sensor After Catalyst, Checking|Page 2099
Page 3
background image

Terminal 4 + socket 70
Terminal 3 + socket 51
Wire resistance: max: 1.5 Ohms

Vehicles with engine code AWP, AWW

-

Check wires between test box and 6-pin connector (to control module) for open circuit according to wiring diagram.
Terminal 1 + socket 70
Terminal 2 + socket 71
Terminal 5 + socket 51
Terminal 6 + socket 52
Wire resistance: max: 1.5 Ohms

Continued for all vehicles

-

Check wires for short circuit to B+ and Ground (GND).
Specified value: Infinite Ohms

If no malfunctions are found in wires:

-

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

-

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

-

Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes

Operational Readiness of Oxygen Sensor After Catalyst, Checking|Page 2101 > < Operational Readiness of Oxygen Sensor After Catalyst, Checking|Page 2099