Engine-Codes - Mini - P0050 MINI

P0050 MINI Code - HO2S 21 Heater Control Circuit

- Code Popularity: 1,856 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the Code P0050 MINI?

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

|How to Fix the P0050 MINI Code?

Start by checking 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.

|Code P0050 MINI 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.

|What is the Cost to Diagnose the Code P0050 MINI?

Labor: 1.0

The cost to diagnose the P0050 MINI code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|When is the P0050 MINI Code Detected?

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

|What are Code P0050 MINI Possible Symptoms?

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

|What Does the P0050 MINI Code Mean?

Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
HO2S 21 Heater Control Circuit

|Need more Information on the P0050 MINI Code?

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|Need Help with the P0050 MINI Code?

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