[SOLVED] P20B6 Code: Fix Your Reductant Heater Circuit With Ease

The P20B6 fault code in automobiles refers to a problem with the Reductant Metering Unit Heater Control, which can cause the engine light to turn on. The cause of this issue could be a faulty control unit, an open or shorted harness, or a poor electrical connection. It is important to visually inspect the wiring harness and connectors for any damage or corrosion.

The repair time for this issue is estimated to be around 1.0. To interpret the fault code, one should check the possible causes listed above and look for any broken or bent components.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of the p20b6 fault code.

Here are the symptoms to look out for:

  • The P20B6 fault code in automobiles can cause the following symptoms: Engine Light ON, Service Engine Soon Warning Light, decreased fuel efficiency, rough idling, engine misfires, reduced engine power, and difficulty starting the engine.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

The P20B6 fault code can be caused by a faulty reductant metering unit heater control, open or shorted harness, or poor electrical connection.

  • The automobile fault code P20B6 can be caused by a faulty Reductant Metering Unit Heater Control.
  • It can also be caused by an open or shorted Reductant Metering Unit Heater Control harness.
  • Additionally, a poor electrical connection in the Reductant Metering Unit Heater Control circuit can also trigger this fault code.

To fix the automobile fault code p20b6, check the possible causes and inspect related wiring harness and connectors for damage.

  • To fix the automobile fault code P20B6, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code P20B6 can be diagnosed and fixed within an estimated repair time of 1.0 hour.

The cost of repair is influenced by the repair time, which is commonly charged between $75 and $150 per hour by most auto repair shops. Therefore, the total cost of diagnosis and fixing the P20B6 fault code will depend on the hourly rate charged by the repair shop and the estimated repair time.

The P20B6 code is a generic description for the Reductant Metering Unit Heater Control Circuit Performance.

However, the manufacturer may have a different description for your specific vehicle model and year. Unfortunately, we do not have any further information about this code at this time.

If you have any questions or concerns, please feel free to post them in the comments section below for more information.

What are the possible causes of the P20B6 fault code in an automobile?

If you see the engine light on or the service engine soon warning light, it could be due to the P20B6 fault code. This code is caused by a faulty reductant metering unit heater control, an open or shorted harness, or a poor electrical connection in the control circuit. To fix this issue, you should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How can one visually inspect the wiring harness and connectors related to the Reductant Metering Unit Heater Control?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Reductant Metering Unit Heater Control. To fix this issue, you should visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This will help you identify if the Reductant Metering Unit Heater Control harness is open or shorted, or if there is a poor electrical connection in the circuit.

What are the consequences of ignoring the P20B6 fault code in an automobile?

Ignoring the P20B6 fault code in an automobile can lead to serious consequences. The engine light will remain on, indicating a problem with the Reductant Metering Unit Heater Control. This can result in reduced fuel efficiency, increased emissions, and potential damage to the engine. It is important to address the issue by visually inspecting the wiring harness and connectors, checking for damaged components, and fixing any issues found.

p20b6 error fault code explained

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Reductant Metering Unit Heater Control or an openshorted harness. Visually inspect the wiring harness and connectors for damage and check for broken, bent, pushed out, or corroded connector’s pins.

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