DTC P2228 Or DTC P2229
Code Definition
- DTC P2228: Barometric Pressure Sensor Circuit Low Voltage
- DTC P2229: Barometric Pressure Sensor Circuit High Voltage
CAUTION:
When substituting or replacement of PCM is recommended, see PCM REMOVAL & REPLACEMENT
for important precautions.
NOTE:
Barometric Pressure (BARO) sensor us located inside PCM and is not available separately.
- Turn ignition on. Using Honda PGM Tester or the HDS, check BARO sensor in the DATA list. If BARO reading is 53 kPa or 1.58 volt or less, go to next step. If BARO reading is 53 kPa or 1.58 volt or less, problem is intermittent, system is OK at this time.
- Update the PCM if it does not have the latest software, or substitute a known-good PCM. Check for Temporary DTCs or DTCs in the DTC menu. If DTCs P2228 and/or P2229 are set, check for poor connections or loose terminals at PCM harness connector. Go to step 1 . If any other Temporary DTCs or DTCs are set, troubleshoot those indicated. If there are no Temporary DTCs or DTCs set, PCM was updated, troubleshooting is complete. If PCM was substituted, replace original PCM.