What Does the P0371 Code Mean?
The P0371 code indicates that the engine control module (PCM) has detected too many pulses from the Timing Reference High Resolution Signal “A.” This signal is crucial as it relates to the crankshaft position sensor (CKP) and is used to ensure that the engine runs smoothly and efficiently.
What Causes the P0371 Code?
The P0371 code can be triggered by several issues, including:
- Failure of the crankshaft position sensor (CKP)
- Failure of the fuel injection control module (FICM)
- Failure of the powertrain control module (PCM)
- Wiring issues, such as damaged or corroded wires or connectors
What Are the Symptoms of the P0371 Code?
Drivers may notice the following symptoms when the P0371 code is present:
- Decreased engine performance
- Engine may not start
- Potential stalling or rough running
How Serious Is the P0371 Code?
The P0371 code is considered urgent as it indicates a significant malfunction that can lead to severe engine damage if not addressed promptly. Delaying repair could also compromise driver and passenger safety.
How to Diagnose the P0371 Code
To diagnose the P0371 code, a mechanic will typically follow these steps:
- Use an OBD-II scanner to confirm the P0371 code and check for any additional codes.
- Inspect wiring and connectors related to the CKP and FICM for any signs of damage or corrosion.
- Test the crankshaft position sensor (CKP) and fuel injection control module (FICM) to determine if they are functioning properly.
- Perform a thorough inspection of the powertrain control module (PCM) for faults.
Common Repairs for the P0371 Code
Repair options for the P0371 code may include:
- Replacing the crankshaft position sensor (CKP)
- Repairing or replacing the fuel injection control module (FICM)
- Fixing any wiring issues or damaged connectors
- Replacing the powertrain control module (PCM) if necessary
How Much Does It Cost to Fix the P0371 Code?
The cost to fix the P0371 code can vary widely depending on the root cause of the issue. On average, repairs can range from $100 to $1,000 or more, depending on whether it involves simple wiring repairs or more extensive component replacements.
Can I Fix the P0371 Code Myself?
While some DIY enthusiasts may feel comfortable diagnosing and repairing issues related to the P0371 code, it is essential to have a good understanding of automotive electronics and systems. Given the potential for severe engine damage and safety risks, consulting with a professional mechanic is recommended for most drivers.
