Exhaust Pressure Regulator Circuit Low
The P2695 code means the vehicle's onboard diagnostic system has detected: Exhaust Pressure Regulator Circuit Low. This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $300 - $800 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Exhaust back pressure too low for proper regen
- DPF not reaching regeneration temperature
- Soot accumulation in DPF accelerated
- Engine may derate
Probable Causes (Ranked by Likelihood)
- Short to ground in regulator solenoid circuit Very High
- Exhaust pressure regulator solenoid coil shorted High
- Damaged wiring near exhaust components Moderate
- PCM ground circuit issue Low
Step-by-Step Diagnostic Procedure
-
Read freeze frame data and confirm P2695 is stored
-
Measure voltage at regulator solenoid connector
-
Test solenoid coil resistance
-
Check for shorts to ground in regulator wiring
Frequently Asked Questions
What does P2695 mean?
P2695 indicates an issue with the exhaust pressure regulator circuit low. This is related to the diesel exhaust aftertreatment system that controls emissions and DPF operation.
Can I drive with a P2695 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 P2695?
Repairs typically cost $300 - $800. 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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