Dtc P0133 Heated Oxygen Sensor (Ho2S) Circuit Slow Response (Sensor-1) - Suzuki Swift User Manual
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6-1-56 ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13)
DTC P0133 HEATED OXYGEN SENSOR (HO2S) CIRCUIT SLOW RESPONSE
(SENSOR-1)
WIRING DIAGRAM/CIRCUIT DESCRIPTION – Refer to DTC P0130 section.
DTC DETECTING CONDITION
D When running at specified idle speed after engine
warmed up and running at specified vehicle speed,
response time (time to change from lean to rich or
from rich to lean) of HO2S-1 output voltage is about
1 sec. at minimum or average time of 1 cycle is 5 sec.
at minimum. See. Fig. 1
: 2 driving cycle detection logic, Monitoring once/1
driving.
Fig. 1
1 cycle time
HO2S-1
Output
voltage
Response time
DTC CONFIRMATION PROCEDURE – Refer to DTC P0130 section.
INSPECTION
STEP
1
Was "ENGINE DIAG. FLOW TABLE" performed?
2
Is there DTC(s) other than HO2S-1 (DTC P0133)?
ACTION
POSSIBLE CAUSE
D Heated oxygen sensor-1 malfunction
YES
Go to Step 2.
Go to applicable DTC
Diag. Flow Table.
NO
Go to "ENGINE DIAG.
FLOW TABLE".
Replace HO2S-1.
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