U0680
Lost Communication With Barometric Pressure Sensor B
U0680 is an OBD-II diagnostic trouble code meaning: Lost Communication With Barometric Pressure Sensor B. Common causes: open or short circuit in the wiring to the sensor, oxidation or damage to contacts in connectors. Estimated repair cost: $17–67.
Symptoms
- The Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable operation at idle
- Problems starting the engine
Causes
- Open or short circuit in the wiring to the sensor
- Oxidation or damage to contacts in connectors
- Atmospheric pressure sensor B malfunction
- Problems with power or grounding of the sensor
- Failures in ECU software
How to Fix
- Check the integrity of the sensor wiring and connectors
- Check the supply voltage and ground of the sensor
- Test the pressure sensor with a multimeter
- Replace the faulty sensor if necessary
- Update the ECU firmware if there are manufacturer recommendations
Related codes
Error U0680 by Vehicle Brand
FAQ
What does the U0680 code mean?
U0680 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Barometric Pressure Sensor B
What causes a U0680 error code?
The most common causes of U0680 include: Open or short circuit in the wiring to the sensor; Oxidation or damage to contacts in connectors; Atmospheric pressure sensor B malfunction; Problems with power or grounding of the sensor.
How do I fix a U0680 diagnostic trouble code?
To fix U0680: Check the integrity of the sensor wiring and connectors. Check the supply voltage and ground of the sensor. Test the pressure sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0680?
Yes, but get it checked soon
How much does it cost to fix U0680?
The estimated repair cost for U0680 is $17–67. Actual cost depends on your vehicle, location, and labor rates.
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