What this code means
P2229 may indicate the PCM is seeing a barometric pressure sensor signal that is higher than expected.
What the vehicle may do
- The vehicle may run normally.
- The vehicle can have possible drivability changes depending on PCM response.
Possible fault areas
- Possible BARO sensor signal issue.
- Possible connector or circuit integrity issue.
- Possible PCM interpretation issue.
Diagnostic path
Code overview
On this Honda CR-V, P2229 is about the barometric pressure sensor signal reading higher than expected. In plain language, the PCM is seeing a BARO signal that may not make sense for the conditions. The vehicle may run normally, or it can have possible drivability changes depending on how the PCM responds. Broadly, the fault area may involve the BARO sensor signal, its connection or circuit integrity, or how the PCM is interpreting that input.
Start the diagnostic path
Before chasing the code, start with the basic system checks and follow a structured diagnostic approach. If anything obvious is present, deal with that first instead of jumping straight to a sensor conclusion.
Key confirmation step
Next, turn the vehicle to the ON mode. With the scan tool, look at the HDS Baro Sensor value. For this P2229 path, if the Baro Sensor value is more than 864.1 mmHg, the failure is duplicated.
Diagnostic logic
The logic is straightforward: when the BARO sensor output value is higher than the specified value, the PCM judges that as abnormal and stores P2229. So the scan data is being used here to confirm whether the high BARO signal condition is present right now.
Takeaway
The main point is to confirm the BARO reading with the vehicle in ON mode and avoid guessing. If the HDS Baro Sensor value is more than 864.1 mmHg, the failure is duplicated, and the rest of the diagnostic work should stay focused on why that BARO signal is reading high. For more diagnostic training, visit stepdiagnostics.com.
Final check
Confirm the scan tool BARO value first, then keep the diagnostic direction focused on the high signal condition.
For more guided automotive diagnostics, visit STEP Diagnostics.
