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P0289 OBD2: Cylinder 10 Injector Circuit High

P0289 OBD2: Cylinder 10 Injector Circuit High

The OBD2 code P0289 indicates a problem with the fuel injector circuit for cylinder 10 in your vehicle. This code is triggered when the engine control module (PCM) detects that the fuel injector for that cylinder is not functioning correctly, often due to a high circuit condition.

What Does the P0289 Code Mean?

The P0289 code specifically refers to the fuel injector circuit for cylinder 10 being in a high condition. This means that the PCM is unable to control the fuel injector due to an electrical issue, which can lead to decreased engine performance and increased fuel consumption.

What Causes the P0289 Code?

  • Fuel injection control module (FICM) failure
  • Fuel injector failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues, such as short circuits or damaged connectors

What Are the Symptoms of the P0289 Code?

  • Decreased engine performance
  • Increased fuel consumption

How Serious Is the P0289 Code?

The P0289 code is considered urgent as it can lead to significant engine performance issues and may result in further damage if not addressed promptly. Immediate action is necessary to prevent potential harm to the vehicle and ensure the safety of the driver and passengers.

How to Diagnose the P0289 Code

Diagnosing the P0289 code involves a systematic approach:

  • Use an OBD-II scanner to confirm the P0289 code and check for any additional codes.
  • Inspect the wiring and connectors related to cylinder 10’s fuel injector for any visible damage.
  • Test the fuel injector’s resistance using a multimeter.
  • Check the FICM and PCM for proper operation.

Common Repairs for the P0289 Code

  • Fuel injector replacement
  • Repair or replacement of damaged wiring or connectors
  • FICM or PCM replacement or reprogramming

How Much Does It Cost to Fix the P0289 Code?

The cost to fix the P0289 code can vary widely depending on the underlying issue. Simple wiring repairs may cost around $100-$300, while replacing a fuel injector can range from $200 to $600. If the PCM needs replacement, costs can escalate to $800 or more, including parts and labor.

Can I Fix the P0289 Code Myself?

While some aspects of diagnosing and fixing the P0289 code can be done yourself, such as inspecting wiring and connectors, replacing a fuel injector or PCM typically requires advanced automotive knowledge and tools. If you are not experienced, it is advisable to consult a professional mechanic to ensure proper diagnosis and repair.

About JC Landry

JC spent 15+ years as a certified Master Mechanic before trading the shop for the keyboard. He's worked across dealerships, owned and operated his own independent garage, and consulted on automotive trade school curricula, reviewing technical textbooks used in vocational programs. He now serves as Editor-in-Chief at eManualOnline.com, where he oversees the platform's technical content. He's one of the few voices in automotive publishing who has actually turned wrenches professionally on the vehicles he covers. He didn't learn automotive repair to write about it. He learned to write after spending over a decade doing it.

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