P0133; Outline - Yamaha XSR 900 2022 Service Manual

EAS20767

P0133

• O sensor: deterioration is detected. O
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EAS33291

OUTLINE

Explanation of detection method
The O sensor detects the oxygen concentration in the exhaust gas, converts it into an electrical signal,
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and sends it to the ECU. The ECU determines whether there is any deterioration by comparing the out-
put value from the O
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ECU determines that there is an O
Frequency of detection
Malfunction determination
method
Driving condition
Type of detection result
Requirement for detection
Duration
O feedback
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Vehicle speed
Gear position
Engine speed
Fuel correction value
Related sensor for detection
O sensor, intake air pressure sensor, coolant temperature sensor (or engine temperature sensor),
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front wheel sensor, rear wheel sensor, crankshaft position sensor, and throttle position sensor
Storing DTC
Once an abnormality has been detected, a pending DTC is stored in the memory of the ECU. Then, if
the abnormality is detected in the next two driving cycles, the MIL comes on and the DTC and FFD are
stored. If the vehicle is judged to be operating normally for three consecutive driving cycles, the MIL
goes off. However, the DTC, pending DTC, and FFD will not be deleted even if a battery terminal is dis-
connected.
Reproduction test
Perform the test using the driving pattern according to the detection method.
EWA20860
WARNING
When test riding the vehicle, always comply with local traffic regulations.
sensor output signal response speed is slow.
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sensor with a predetermined threshold value such as response time. When the
sensor deterioration, the DTC is stored in ECU and MIL comes on.
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Once per driving cycle
If an abnormality is detected in three consecutive driving cycles, the
malfunction is confirmed and the MIL comes on.
Flat road, no overloading, and no acceleration or deceleration
Complete, Incomplete
400 seconds or more
Carried out
40–60 km/h (25–37 mph)
No condition specified
No condition specified
The O feedback correction amount is within a certain range.
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P0133