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DTC P2227: BARO Sensor Range/Performance Problem Honda Accord VII

Testing & Diagnostics ~474 words

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION . If DTC P0107, P0108, P1128, and/or P1129 are stored at the same time as DTC P2227, troubleshoot those DTCs first, then recheck for DTC P2227.

  1. Turn the ignition switch ON (II), and wait 2 seconds.
  2. Check the BARO SENSOR in the DATA LIST with the HDS. Is about 101 kPa (29.9 in.Hg, 760 mmHg), or about 2.9 V at sea level indicated? YES - Go to step 3. NO - Go to step 7 .
  3. Clear the DTC with the HDS.
  4. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.
  5. Test-drive under these conditions, then connect the HDS: ECM SENSOR 1 above 158°F (70°C) A/T in D position (M/T in 4th gear) Throttle position between 12 degrees and 20 degrees for 2 seconds
  6. Monitor the OBD STATUS for DTC P2227 in the DTCs MENU with the HDS. Does the screen indicate FAILED? YES - Go to step 7. NO - If the screen indicates PASSED, intermittent failure, system is OK at this time. If the screen indicates NOT COMPLETED, go to step 4 and recheck.
  7. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see «UPDATING THE ECM/PCM»(ref-217088-S24744287632006012800000) , «SUBSTITUTE THE ECM/PCM»(ref-217088-S19980179352006012800000) ).
  8. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, the let it idle.
  9. Test-drive under these conditions: ECM SENSOR 1 above 158°F (70°C) A/T in D position (M/T in 4th gear) REL TP SENSOR between 12 degrees and 20 degrees for 2 seconds
  10. Check for Temporary DTCs or DTCs with the HDS. Is DTC P2227 indicated? YES - Check for poor connections or loose terminals at the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see «SUBSTITUTE THE ECM/PCM»(ref-217088-S19980179352006012800000) ), then go to step 8 . If the ECM/PCM was substituted, go to step 1 . NO - Go to step 11.
  11. Monitor the OBD STATUS for DTC P2227 in the DTCs MENU with the HDS. Does the screen indicate FAILED? YES - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM; (see «'03-05 models»(ref-217090-S38499727802008070700000) , «'06-07 models»(ref-217090-S00958644352008070700000) ). If any other Temporary DTCs or DTCs were indicated in step 10, go to the indicated DTC's troubleshooting. NO - If the screen indicates FAILED, check for poor connections or loose terminals at the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see «SUBSTITUTE THE ECM/PCM»(ref-217088-S19980179352006012800000) ), then go to step 9 . If the screen indicates NOT COMPLETED, go to step 9 .

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