P1131

P1131 00

O2S. Switch Point - Lean. Sensor 1







Fault symptom
- Check Engine (OBDII, EOBD).

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Engine speed between 1500 and 2800 rpm.
- Engine load between 200 - 400 mg/c.
- No changes in load.
- Closed loop blocked in rich or lean mode during several combustions in order to maintain voltage from heated oxygen sensor 2 at 0.6 V. The total number of required combustions are adapted.

Fault criteria:
- Closed loop blocked in rich or lean mode during several combustions in order to maintain voltage from heated oxygen sensor 2 at 0.6 V. The total number of required combustions are adapted.

Dependent:
- None

System reaction to a fault:
- None

OK report:
- Diagnosis completed without fault report.

Fault handling:
Type III
(See section Fault handling III, "Other emission-related components and functions" for more information.)

Diagnostic help

Diagnosis regards:
- Defective oxygen sensor.

Functions in the diagnostic tool related to the fault:

Test value:
- O2S 1
- Closed Loop
(See also description of readings/activations in diagnostic tool)