U0680

Lost Communication With Barometric Pressure Sensor B

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–67 (est.)

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

U0100 U0121 U0155