HO2S Heater Control Circuit Bank 2 Sensor 1


Table of contents

P0050 FORD Possible Causes

  • Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit
  • Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit open shorted to ground
  • Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How do I fix code P0050 FORD?

  Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

Tech Notes

  • The code means that there is a problem with the heater element circuit of the heated oxygen sensor. Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow, which is a very common problem for this type codes. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors.

Cost of diagnosing the P0050 FORD code

  The cost of diagnosing the P0050 FORD code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

When is the code detected

  The P0050 is set when the ECM detects an open or shorted to ground condition on the heated oxygen sensor heater circuit

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0050 FORD Description

  The powertrain control module (PCM) monitors the heater in the heated oxygen sensor (HO2S) for correct operation. The PCM controls the heater on/off duty cycle to maintain a temperature of 780°C (1,436°F). The test fails when the sensor does not warm up to the required temperature in a calibrated amount of time. The test also fails when the PCM is not able to maintain the required temperature after the sensor is warm.

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