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DTC P0134: Ho2S Circuit No Activity Detected Bank 1/Sensor 1: DTC Detecting Condition
DTC DETECTING CONDITION CHART
| Item |
Detecting Condition |
Possible cause |
| DTC Strategy |
- O2 sensor staying time (TFB2) below or under the reference voltage to decide rich/lean is monitored.
|
- Poor connection
- Intake/Exhaust system for leak
- Resistance of wire in HO2S circuit
- Open or short in HO2S heater circuit
- Defective HO2S
- Improper fuel pressure
- Defective ECM
|
| Enable Conditions |
- Engine coolant > 60°C
- Engine speed 1750~3500 rpm
- Load value 25% ~ 70%
|
| Threshold value |
- Time, TFB2 is greater than or equal to 30 sec
|
| Diagnosis Time |
|
| MIL On Condition |
|