Technical Definition:
O2 Circuit No Activity Detected (Bank 1, Sensor 1)
Trouble Code: P0134
Address: 0x0134
System: Powertrain
Subsystem:
Address: 0x0134
System: Powertrain
Subsystem:
Technical Description:
This code refers to the front oxygen sensor on Bank 1. Basically the oxygen sensor is inactive.
Possible Causes:
- Bad O2 (oxygen) sensor
- Bad heater circuit in the O2 sensor
- Wiring or connector to the sensor frayed / broken
- Blown heater circuit fuse
- Holes in the exhaust system
- PCM failure
Possible Symptoms:
O2 Sensor Circuit No Activity Detected Sensor 1 Bank 1
Possible Solutions:
- Rusted exhaust pipe
- Inspect wiring & connector(s) for problems
- Excessive amperage blowing heater fuse
- Replace PCM.
OBD-II Trouble Code Type:
Diagnostic Step:
Tech Notes:
– Faulty Front Heated Oxygen Sensor Bank 1
– Front Heated Oxygen Sensor Bank 1 harness is open or shorted
– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
– Inappropriate fuel pressure
– Faulty fuel injectors
– Intake air leaks may be faulty
– Exhaust gas leaks
Specific Makes:
– High Fuel Consumption
– Excessive Smoke from Exhaust