P0607 Code: Control Module Performance — Causes & Fix
P0607 means the ECM/PCM has detected an internal performance fault — the module isn't operating within its own expected parameters.
- Applies to
- All OBD-II vehicles (any make or model)
- Est. repair cost
- $60 – $900
- Time to fix
- 30 minutes – 2 hours
What it means
Causes include an internal module failure, corrupted software, or power/ground problems. P0607 is a generic OBD-II code defined in the SAE J2012 standard, so it applies to virtually any 1996-or-newer OBD-II vehicle regardless of make. Fix the underlying fault, then clear the code with an OBD-II scan tool — it will return if the problem isn't resolved.
Symptoms
- Check engine light on
- Poor running, stalling, or limp mode
- Other systems affected
How to fix it
- 1
Verify power and grounds
1. Check ECM power feeds and grounds and charging voltage.
- 2
Reflash or replace
1. If supply is good and the fault persists, reprogram or replace the module. 2. Clear the code after repair.
Frequently asked questions
Is P0607 a bad computer?
Often — but confirm clean power and grounds first, and try a reflash before replacing the module.
Last updated July 19, 2026
Guidance only — always consult a qualified professional or the official service manual before carrying out repairs.