P0143
02 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
DTC P0143, sometimes indicated as P014300 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing 02 sensor circuit low voltage (bank 1 sensor 3).
The most likely cause of this code is a bad oxygen sensor. Other causes could include a leak in the exhaust system, a problem with the fuel injection system, or a problem with the engine computer.
If the code is caused by a bad oxygen sensor, it will need to be replaced. If the code is caused by a problem with the fuel injection system or the engine computer, the problem will need to be diagnosed and fixed.
- P0143: 02 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
- P0143: O2 Sensor Circuit Low Voltage Bank 1 Sensor 3
- P0143: O2 Sensor Circuit Low Volts (Bank 1 Sensor 3)
- P0143: O2 Sensor Circuit Low Voltage
- P0143: Heated oxygen sensor (HO2S) 3, bank 1 – low voltage
- P0143: Oxygen sensor (O2S) 3, bank 1 – low voltage
- P0143 00: Probe signal? 3 too low
- P0143 00: Heated oxygen sensor (HO2S) 3, bank 1 - low voltage
- P0143 00: Oxygen sensor (O2S) 3, bank 1 - low voltage
Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.
- LTB00671NAS3 - ENGINE (PWS)
LAND ROVER: "situation: the engine malfunction indicator lamp (mil) may be illuminated and diagnostic trouble code (dtc) P0042, P0043, P0044, P0055, P0061, P0062, P0063, P0142, P0143, P0144, P0147, P0162, P0163, P0164, and/or P0167 - relevant to the - LTB00671NAS2 - ELECTRICAL SYSTEM
LAND ROVER: "situation: the engine malfunction indicator lamp (mil) may be illuminated and diagnostic trouble code (dtc [(P0042, P0043, P0044, P0055, P0061, P0062, P0063, P0142, P0143, P0144, P0147, P0162, P0163, P0164, and/or P0167]) relevant to the - LTB00671NAS1 - EQUIPMENT:ELECTRICAL
LAND ROVER: "situation: the engine malfunction indicator lamp (mil) may be illuminated and diagnostic trouble code (dtc [(P0042, P0043, P0044, P0055, P0061, P0062, P0063, P0142, P0143, P0144, P0147, P0162, P0163, P0164, and/or P0167]) relevant to the