Control Module Performance
The DURAMAX-P0607 (Duramax) diesel fault code means: Control Module Performance. This is a critical severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- intermediate
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What Are the Symptoms of DURAMAX-P0607?
- Check Engine Light on
- Possible reduced power, stalling or no start
What Causes DURAMAX-P0607? (Most Likely First)
- Internal control module fault High
- Poor power or ground supply to the module Moderate
- Corrupted software Moderate
Can I Still Drive with DURAMAX-P0607?
No — stop driving. DURAMAX-P0607 is rated critical severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.
Frequently Asked Questions
What does P0607 mean on a Duramax?
P0607 means Control Module Performance. The control module has detected that it is not performing as expected in one of its internal checks.
Is P0607 a Duramax-specific code?
No. P0607 is a generic OBD-II code defined by SAE J2012, so it means the same thing on any vehicle that sets it. The exact conditions GM uses to set it on its diesels are in GM service information.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose DURAMAX-P0607?
Check battery voltage and the module power and ground circuits first.
Check for a software update.
Replace the module only after power, grounds and software are ruled out.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P0607 as a generic OBD-II code)
P0607 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
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