Exhaust Pressure Sensor Circuit Low
The P2692 code means the vehicle's onboard diagnostic system has detected: Exhaust Pressure Sensor Circuit Low. This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $200 - $600 (parts and labor)
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Common Symptoms
- Check Engine Light on
- DPF regeneration not initiating
- DPF filter becoming dangerously clogged
- Severe power loss possible
- DPF warning light flashing
Probable Causes (Ranked by Likelihood)
- Open circuit in exhaust pressure sensor wiring Very High
- Failed exhaust pressure sensor High
- Sensor reference hose disconnected Moderate
- PCM input driver failure Low
Step-by-Step Diagnostic Procedure
-
Read freeze frame data and confirm P2692 is present
-
Measure exhaust pressure sensor voltage at connector
-
Check sensor hose connection and wiring continuity
-
Verify sensor ground circuit
Frequently Asked Questions
What does P2692 mean?
P2692 indicates an issue with the exhaust pressure sensor circuit low. This is related to the diesel exhaust aftertreatment system that controls emissions and DPF operation.
Can I drive with a P2692 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 P2692?
Repairs typically cost $200 - $600. 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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