P0206 Fault Code

P0206 OBD-II Trouble Code Short Description

Cylinder 6 Injector Circuit Malfunction

What does trouble code P0206 mean?

The P0206 fault code is specific to cars with a multi-point fuel injection system. It indicates a problem in the electrical circuit that controls the fuel injector for cylinder 6. This could be caused by a variety of issues such as a faulty fuel injector, damaged wiring, or a defective powertrain control module (PCM).

The solution to the P0206 fault code will depend on the root cause. To diagnose the issue, a mechanic may use a scan tool to check for any other related fault codes and perform a visual inspection of the wiring and fuel injector for cylinder 6. They may also conduct tests to check for fuel pressure and electrical continuity.

If the problem is a damaged fuel injector or wiring, the mechanic may need to replace the faulty component. If the issue is a faulty PCM, it will need to be reprogrammed or replaced.

It's important to address the P0206 fault code promptly to prevent potential engine damage and reduce the risk of additional problems down the road.


What are the symptoms of the P0206 code?

Symptoms of a P0206 fault code in cars can vary, but may include:

  • Engine misfire, rough idling, or hesitation during acceleration
  • Reduced power or poor performance
  • Check Engine Light (CEL) or Malfunction Indicator Light (MIL) illuminated on the dashboard
  • Smell of unburned fuel from the tailpipe
  • Increased fuel consumption
  • Difficulty starting the engine or stalling at idle speed

It is important to note that other factors can also cause similar symptoms in vehicles, so a proper diagnostic test should be performed to confirm the presence of a P0206 fault code.


What causes the P0206 code?

P0206 is a diagnostic trouble code (DTC) that indicates a fault in the fuel injector circuit of a vehicle. There are several potential causes of this fault code, including:

  1. Faulty fuel injector - A damaged or malfunctioning fuel injector may cause P0206 to trigger.

  2. Wiring issues - Broken or damaged wiring in the fuel injector circuit can cause P0206 to appear.

  3. Poor electrical connection - A loose or corroded electrical connection can prevent the fuel injector from functioning properly, leading to P0206.

  4. Faulty fuel injector driver circuit - The injector driver circuit may be defective, leading to P0206.

  5. Failed Engine Control Module (ECM) - If the engine control module is damaged or failing, it can cause P0206 and other related issues.

  6. Low fuel pressure - If the fuel pressure is too low, it can cause the fuel injectors to malfunction, which can trigger P0206.

  7. Clogged injectors - if an injector is clogged due to the deposit of foreign material, P0206 DTC is likely to appear.

To diagnose the root cause of P0206, it's essential to take the vehicle to a qualified mechanic or technician who can perform a full diagnostic scan using specialized equipment. Once the underlying issue has been identified, the necessary repairs can be made to resolve the problem and clear the DTC code.

Possible Solutions

How to fix P0206?

The P0206 fault code indicates a problem with the fuel injector circuit in cylinder 6. This can cause issues with engine performance, fuel efficiency, and emissions. If you encounter this code, here are some steps you can follow to fix it:

  1. Check the fuel injector

The first thing to do is to check the fuel injector in cylinder 6. Use a multimeter to check the resistance of the injector and ensure it is within the manufacturer's specifications. If the resistance is out of range, replace the injector.

  1. Check the wiring

If the injector is functioning within the correct range, then the problem might be with the wiring. Check the wiring harnesses and connectors between the injector and the engine control unit (ECU) for any damage or corrosion. Repair or replace any damaged wiring.

  1. Check the ECU

In some cases, the problem might be with the ECU itself. Check the ECU for any signs of damage, and make sure it is receiving power and ground connections. If the ECU is faulty, replace it.

  1. Clear the code

After fixing the issue, it is important to clear the fault code from the ECU memory. This can be done using an OBD-II scanner or tool. If the code does not clear or keeps coming back, there might still be an underlying issue that needs to be addressed.

By following these steps, you can fix the P0206 fault code on your car and restore its performance and efficiency.


  • What is P0206?

    P0206 is a diagnostic trouble code (DTC) related to a malfunction in the fuel injector circuit of cylinder 6.

  • What are the symptoms of P0206?

    Symptoms of P0206 may include engine misfire, decreased fuel economy, rough idle, decreased power, and illuminated check engine light.

  • What causes P0206?

    Common causes of P0206 include faulty fuel injector, damaged wiring or connectors in the fuel injector circuit, low fuel pressure, and malfunctioning fuel injector driver circuit in the engine control module (ECM).

  • How is P0206 diagnosed?

    P0206 is diagnosed using a scan tool that can read DTCs and monitor live data from the engine. Additionally, technicians may perform an injector balance check and visual inspection of the fuel injector circuit.

  • How is P0206 repaired?

    The repair for P0206 depends on the underlying cause. Common fixes include replacing faulty fuel injector, repairing damaged wiring or connectors in the fuel injector circuit, and repairing or replacing the fuel injector driver circuit in the ECM.

  • Is P0206 a serious issue?

    Yes, P0206 can potentially cause damage to the engine if left unaddressed. It is recommended to have the issue diagnosed and repaired as soon as possible.

  • Can a fuel injector cleaner fix P0206?

    No, a fuel injector cleaner cannot fix P0206. This issue is typically caused by a mechanical or electrical malfunction with the fuel injector or circuit and requires professional diagnosis and repair.

  • How much does it cost to fix P0206?

    The cost to fix P0206 can vary widely depending on the underlying cause and the labor rates at your local repair shop. It is best to get a diagnosis and estimate from a trusted automotive technician before proceeding with repairs.