U0651
Lost Communication With EGR Sensor A
U0651 is an OBD-II diagnostic trouble code meaning: Lost Communication With EGR Sensor A. Common causes: egr sensor a fault, broken or shorted wiring. Estimated repair cost: $17–56.
Symptoms
- Check Engine Light Is On
- Deterioration in acceleration dynamics
- Increased fuel consumption
- Unstable engine idling
- Increased emissions of harmful substances
Causes
- EGR sensor A fault
- Broken or shorted wiring
- Poor contact in the sensor connector
- Problems with the engine control unit
- Corrosion or oxidation of contacts
How to Fix
- Check the integrity of the wiring and connectors of the EGR sensor A
- Check the voltage and resistance of the sensor
- Clean sensor contacts and connectors
- Replace EGR sensor A if necessary
- Check and update the control unit software if necessary
Related codes
Error U0651 by Vehicle Brand
FAQ
What does the U0651 code mean?
U0651 is an OBD-II diagnostic trouble code that indicates: Lost Communication With EGR Sensor A
What causes a U0651 error code?
The most common causes of U0651 include: EGR sensor A fault; Broken or shorted wiring; Poor contact in the sensor connector; Problems with the engine control unit.
How do I fix a U0651 diagnostic trouble code?
To fix U0651: Check the integrity of the wiring and connectors of the EGR sensor A. Check the voltage and resistance of the sensor. Clean sensor contacts and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0651?
Yes, but get it checked soon
How much does it cost to fix U0651?
The estimated repair cost for U0651 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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