April 10, 2026

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What does code P2107 mean?

A P2107 trouble code indicates a problem with the throttle actuator control module processor, which is typically part of the PCM (Powertrain Control Module).

This means the computer that controls the throttle system has detected an internal fault or is not processing information correctly. Unlike other throttle codes, this one often points directly to a module-related issue, not just a sensor or wiring problem.

👉 Need help understanding PCM failures? Start here: What Does an ECM Do in a Car?

Common symptoms of a P2107 code

• Reduced engine power
• Vehicle enters limp mode
• Check engine light on
• Poor throttle response
• Engine hesitation
• Possible stalling
• Inconsistent acceleration

What can cause a P2107 code?

• Internal PCM failure
• Software or programming issues
• Voltage irregularities
• Wiring or grounding problems
• Faulty throttle control signals
• Corrupted data within the module

This code is more likely than others to be PCM-related.

Is P2107 serious?

Yes — since this code involves the processor inside the control module, it can affect how the entire throttle system operates.

The vehicle may go into limp mode or experience unpredictable performance issues.

How is P2107 diagnosed?

• Scan for additional trouble codes
• Check battery voltage and charging system
• Inspect wiring and grounds
• Verify throttle system operation
• Test PCM inputs and outputs
• Confirm software integrity and programming

Because this code involves internal processing, proper testing is critical.

How do you fix a P2107 code?

• Repair wiring or grounding issues
• Address voltage problems
• Reflash or update PCM software
• Replace or repair the PCM if necessary
• Perform relearn procedures after repair

In many cases, this code requires professional module testing.

Can a bad PCM cause a P2107 code?

Yes — this is one of the few codes where the PCM itself is often the root cause. If the processor inside the module fails or becomes corrupted, it can no longer properly control the throttle system.

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• Dealership Replacement: $1,000 – $2,500+
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At AutoPCMS, we specialize in repairing and programming PCM modules to restore throttle control and overall performance without the high dealership cost.

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👉 Read more PCM symptoms and warning signs

🧠 Final Thoughts

The P2107 code points to an internal issue within the throttle control module processor, making it one of the more serious throttle-related trouble codes. Unlike simple sensor or wiring problems, this issue often involves the vehicle’s main control module.

👉 Accurate testing is essential to determine whether repair, reprogramming, or replacement is needed.

👉 Still dealing with a P2107 code? Start your repair here

🔗 Related Trouble Codes You Should Check

If you're diagnosing a P2112 code, you may also want to check:

👉 P2101 Code  
👉 P2116 Code  
👉 P0607 Code

🔗 Related PCM & ECM Guides

👉 7 Symptoms of a Bad PCM
👉 PCM Repair vs Replacement
👉 Start Your PCM Repair Here