P0134 - O2 Circuit No Activity Detected (Bank 1, Sensor 1)
P0134 - O2 CIRCUIT NO ACTIVITY DETECTED (BANK 1, SENSOR 1)
| Description: | The powertrain control module (PCM) monitors the heated oxygen sensor (HO2S) for a lack of movement concern. If the sensor signal value is not changing from the default value, the PCM commands an oscillating air/fuel ratio attempting to detect some movement in the signal value. The test fails when the PCM is unable to detect movement in the sensor signal while the air/fuel ratio is oscillating. | |||
| Possible Causes: |
|
|||
| Diagnostic Aids: | ||||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | - | refer to PINPOINT TEST DZ . | refer to PINPOINT TEST DZ . | |