Fault Conditions

P0133

O2S Circuit. Slow Response. Sensor 1.







Fault symptoms
- CHECK ENGINE.

On-Board Diagnostics
Type of diagnosis:
- Once per driving cycle. Interrupted when fault criteria fulfilled or OK reported. Restarts next driving cycle.

Enable criteria:
- General conditions for this trouble code: Atmospheric pressure must exceed 72 kPa and the engine coolant and intake air temperature must be above 70 °C.
- Engine running 3 minutes. Engine speed 1300-2200 rpm. Load 250-500 mg/comb. Closed loop active and stable. Air mass per combustion stable. Purging active. Coolant temperature above 700C. When all criteria have been fulfilled, the number of combustions for 2 sensor transitions is counted.

Fault criteria:
- Number of combustions exceeds 95.

Dependents:
- P0115, P0116, P0117, P0118, P0119, P0131, P0132 and P0134.

System reaction to a fault:
- None.

OK report:
- Diagnosis performed once and fault criteria not fulfilled.

Fault handling: (For more information, Fault Handling III, Other Emission-Related Component & Function)
- Type III.

Diagnostic help
Fault diagnosis concerns an internal fault in the sensor.

Functions in the diagnostic tool related to the fault:
- Diagnostic status for the diagnosis.

For more information, Tech 2 Menu Structure, DTC Menu, Read Value, Activate, Sys Info


NOTE: Oxygen sensor receives reference oxygen from the surrounding air via the connecting cables. For this reason, electrical contact spray or grease must not be used on the oxygen sensor connector.