DTC Troubleshooting: P2228 (K20C2) - Honda Civic FC/FK 2016-2021

DTC Troubleshooting: P2228

DTC P2228: BARO Sensor Circuit Low Voltage

NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description	Confirmed DTC	Pending DTC
P2228 BARO Sensor Circuit Low Voltage

Problem verification:

Problem verification

?1.	Turn the vehicle to the ON mode.

?2.

Check the parameter(s) below with the HDS.

Signal	Threshold		Current conditions
Signal	Values	Unit	Values	Unit
Baro Sensor	Less than 336	mmHg

Do the current condition(s) match the threshold?


	YES

The failure is duplicated. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM, then recheck. If DTC P2228 goes away and the PCM was substituted, replace the original PCM.?


	NO

Intermittent failure, the system is OK at this time. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?