Reference meaning
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The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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P0140O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2
Manufacturer communications
31Original wording in English
SUBARU
"This bulletin announces the availability of new oxygen sensors developed to address the following Diagnostic Trouble Codes (DTCs) detected by the Engine Control Module: • P0137: O2 Sensor Circuit Low Voltage Bank 1 Sensor 2 • P0138: O2 Sensor Circuit High Voltage Bank 1 Sensor 2 • P0140: O2 Sensor Circuit No Activity Detected B…
SUBARU
This bulletin announces the availability of new oxygen sensors developed to address the following Diagnostic Trouble Codes (DTCs); P0137 (O2 Sensor Circuit Low Voltage Bank 1 Sensor 2, P0138 (O2 Sensor Circuit High Voltage Bank 1 Sensor 2) P0140 (O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2), and P0141 (O2 Sensor Heate…
TRIUMPH
Dealer notice advising that models fitted with catalyst monitoring, may trigger DTC P0140 on 2 situations.
CHRYSLER
Valve Cover and Gasket, Left and Right Pertains to vehicles equipped with a 3.6L V6 V.V.T. Engine only: Oil leaking from the valve cover onto the O2 sensor causing faults codes P0140, P2096, P0137, P0157. Need to verify the leak source and cause (gasket pinched, out of position, rolled, or cut). Please call one of the individual…
Check vehicle applicability
140A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | ENCLAVE ↗ | 2015 |
| Buick | ENCLAVE ↗ | 2014 |
| Buick | ENCLAVE ↗ | 2013 |
| Chevrolet | CAVALIER ↗ | 2002 |
| Chevrolet | CAVALIER ↗ | 2001 |
| Chevrolet | CAVALIER ↗ | 2000 |
| Chevrolet | CAVALIER ↗ | 1999 |
| Chevrolet | CAVALIER ↗ | 1998 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.