What is p0050 fault code in Chevy Tahoe?

Answer 1

DTC Code P0050DTC Code:P0050Description: Heated Oxygen Sensor Heater Control Circuit (Bank 2, Sensor 1)Probable Causes:

1. Sensor or solenoid faulty
2. Connector terminal contact is damaged or corroded
3. Wire harness - Check harness for correct voltage, open, short to ground or short to voltage
4. Update control unit software - Check for the latest control unit update
5. Powertrain or Engine Control Module faulty
6. HO2S sensor contamination/damaged

Answer 2

P0050 HO2S Heater Control Circuit Bank2 Sensor1

symptoms
Other than the MIL light illuminating you may not notice any performance issues.

cause
A short in the O2 sensor heater circuit or the sensor itself
A faulty O2 sensor heater
Wiring or connectors are broken or frayed to the sensor or relay
Bad PCM or ECM

The fix
Correct wiring short or loose connector found in inspection.
and/or
Replace the bank 2 sensor 1, O2 sensor
Replace PCM if circuit has failed and no wiring issues present, good O2 sensor