Control Module Performance
The control module has detected a performance issue.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer in the vehicle is having trouble processing information correctly, which can cause performance problems.
What the computer is actually seeing
The control module monitors its own internal operations and compares expected performance against real-time performance; deviations trigger this code.
What a healthy reading looks like
Expected processing speed should be within 15 milliseconds; any processing time over 30 milliseconds can trigger the fault.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Inspect all wiring and connectors to the control module for damage or corrosion.
- 2Check battery voltage, should be between 12.0 to 12.6 volts with the engine off, and 13.5 to 14.5 volts with the engine running.
- 3Perform a software update on the control module if applicable.
- 4Use a scan tool to read any additional codes that may provide more context to the issue.
- 5If no other codes are present, run a control module self-diagnostic test to check for internal failures.
Common causes
- Faulty control module
- Corrupted software
- Electrical issues like bad grounds or power supply
- Failed input or output sensors
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It may be drivable, but there can be performance issues that could worsen. It's best to address it soon.
Will this code come back after erasing it?
If the underlying problem isn't fixed, yes, the code will likely return.
Why might it pair with other codes?
Related codes often indicate co-existing issues that can contribute to the performance problem in the control module.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →