What Does the P2555 Code Mean?
The P2555 OBD-II code is defined as a Throttle/Fuel Inhibit Circuit High. This code indicates that the Fuel Injector Control Module (FICM) has detected an issue where the engine speed exceeds the power that the driver requests, causing the FICM to disable fuel supply to the engine, which can lead to stalling.
What Causes the P2555 Code?
Several factors can trigger the P2555 code, including:
- Crankshaft Position Sensor (CKP) failure
- Fuel Injection Control Module (FICM) failure
- Powertrain Control Module (PCM) failure
- Wiring issues within the throttle or fuel inhibit circuit
What Are the Symptoms of the P2555 Code?
The most common symptom associated with the P2555 code is:
- Engine may stall unexpectedly
How Serious Is the P2555 Code?
The P2555 code is considered urgent, as it indicates significant malfunctions that can result in severe engine damage or pose safety risks to the driver and passengers. Immediate attention is necessary to prevent further complications.
How to Diagnose the P2555 Code
To diagnose the P2555 code, follow these steps:
- Use an OBD-II scanner to confirm the P2555 code and check for any additional trouble codes.
- Inspect the wiring and connectors related to the FICM, CKP, and PCM for damage or corrosion.
- Test the functionality of the Crankshaft Position Sensor.
- Examine the Fuel Injection Control Module for faults.
- Check the Powertrain Control Module for proper operation.
Common Repairs for the P2555 Code
Repairs for the P2555 code may include:
- Replacing a faulty Crankshaft Position Sensor (CKP)
- Replacing a defective Fuel Injection Control Module (FICM)
- Repairing or replacing damaged wiring or connectors
- Reprogramming or replacing the Powertrain Control Module (PCM)
How Much Does It Cost to Fix the P2555 Code?
The cost to fix the P2555 code can vary widely depending on the underlying issue. Typical repairs can range from $100 to $1,500, including parts and labor. A diagnostic fee may also apply, usually between $75 and $150.
Can I Fix the P2555 Code Myself?
While some DIY enthusiasts may be able to troubleshoot and address simple wiring issues or replace sensors, it is crucial to have a good understanding of automotive systems. Since the P2555 code can indicate serious issues, seeking professional help is often recommended to ensure the problem is diagnosed and repaired correctly.
