P2699 moderate

Exhaust Gas Recirculation Cooler Bypass Control Circuit

The P2699 code means the vehicle's onboard diagnostic system has detected: Exhaust Gas Recirculation Cooler Bypass Control Circuit. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
hard
Estimated cost
$200 - $700 (parts and labor)
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Common Symptoms

  • Check Engine Light on
  • EGR cooler bypass not operating
  • Higher NOx emissions
  • Slight decrease in fuel economy
  • EGR system may default to full cooling mode

Probable Causes (Ranked by Likelihood)

  • EGR cooler bypass valve solenoid failure Very High
  • Open or shorted wiring to bypass valve High
  • Carbon buildup in EGR cooler bypass valve Moderate
  • PCM output circuit fault Low

Step-by-Step Diagnostic Procedure

  1. Read freeze frame data and confirm P2699 is present

  2. Test EGR cooler bypass valve solenoid resistance

  3. Check wiring from PCM to bypass valve solenoid

  4. Inspect bypass valve for carbon buildup and free movement

Frequently Asked Questions

What does P2699 mean?

P2699 indicates an issue with the exhaust gas recirculation cooler bypass control circuit. This is related to the diesel exhaust aftertreatment system that controls emissions and DPF operation.

Can I drive with a P2699 code?

You can drive short distances, but the diesel particulate filter system is not operating correctly. Continued driving may cause DPF clogging and expensive repairs.

How much does it cost to fix P2699?

Repairs typically cost $200 - $700. Sensor or wiring repairs are least expensive, while DPF replacement can cost $2,000 to $4,000.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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