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P2153 OBD2: Fuel Injector Group "C" Supply Voltage Circuit Low

P2153 OBD2: Fuel Injector Group “C” Supply Voltage Circuit Low

OBD-II Code P2153 is defined as a Fuel Injector Group “C” Supply Voltage Circuit Low. This code indicates that the engine computer (PCM) has detected an issue with the supply voltage circuit for the fuel injectors in group C, which may lead to severe engine performance problems.

What Does the P2153 Code Mean?

The P2153 code signifies that the PCM has identified low voltage in the fuel injector supply circuit for group C. This may cause the PCM to disable one or both fuel injectors in that group to prevent potential damage to other engine components.

What Causes the P2153 Code?

  • Fuel injector failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues, such as damaged or corroded connectors

What Are the Symptoms of the P2153 Code?

  • The engine may run rough
  • Decreased engine performance
  • Poor fuel economy
  • Potential stalling

How Serious Is the P2153 Code?

This code is considered urgent, as it indicates significant malfunctions that can cause severe damage to the vehicle or pose safety risks to the driver and passengers. Immediate attention is recommended.

How to Diagnose the P2153 Code

  1. Use an OBD-II scanner to confirm the P2153 code and check for any additional codes.
  2. Inspect the fuel injectors and wiring for visible damage or corrosion.
  3. Test the supply voltage to the fuel injectors with a multimeter.
  4. Check the PCM for proper operation and any updates or recalls.

Common Repairs for the P2153 Code

  • Replacing faulty fuel injectors
  • Repairing or replacing damaged wiring
  • Reprogramming or replacing the Powertrain Control Module (PCM)

How Much Does It Cost to Fix the P2153 Code?

The cost to fix the P2153 code can vary widely depending on the underlying cause. Simple wiring repairs may cost anywhere from $100 to $300, while replacing fuel injectors or the PCM can range from $300 to $1,200 or more.

Can I Fix the P2153 Code Myself?

While some DIY enthusiasts may be able to address minor issues like wiring repairs, diagnosing and fixing fuel injector or PCM problems typically requires professional expertise. If you are not experienced with automotive diagnostics, it is advisable to seek professional help.

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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