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
Freeze Frame
P2228 BARO Sensor Circuit Low Voltage
      

1.
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
Values
Unit
Values
Unit
BARO SENSOR
Less than 44.8
kPa
    
Less than 336.0
mmHg

Do the current condition(s) match the threshold?

     
YES
     
     
     
The failure is duplicated. Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If DTC P2228 goes away and the PCM was updated, troubleshooting is complete. 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 freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?