Eos (1F7) L4-2.0L Turbo (BPY) (2007)
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› Wiring diagram.
Test requirements
‹› The Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) fuse Ok.
‹› Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC)) Heater ( Z29) OK. Refer to => [ Oxygen Sensor Heater 1 behind Three
Way Catalytic Converter Z29, Checking ] See: Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics/Oxygen Sensor Heater 1 behind Three Way Catalytic Converter Z29, Checking.
‹› Battery voltage at least 12.5 volts.
‹› All electrical consumers such as, lights and rear window defroster, switched off.
‹› Vehicles with automatic transmission, selector lever in position " P" or "N".
‹› A/C switched off.
‹› Ground (GND) connections between engine/transmission/chassis OK.
‹› Exhaust system between catalytic converter and cylinder head properly sealed.
‹› Coolant Temperature at least 80° C.
Function test
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Perform a function test. Refer to => [ Test-ID 02 ($02): Oxygen Sensor
Monitor Bank 1- Sensor 2 ] See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Modes 01 - 09 [
(BPY) (BUB) ]/Diagnostic Mode 06 - Read Test Results For Specific Diagnostic Functions.
If the specified values are not obtained:
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Computers and Control Systems/Testing
and Inspection/Scan Tool Testing and Procedures/Preliminary Check
Start diagnosis
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Remove the right vehicle floor cover - arrows -.
Checking primary voltage