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DTC P2227: BARO Sensor Circuit Range/Performance Problem Honda Pilot II

Testing & Diagnostics ~523 words

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review 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 P or N) until the radiator fan comes on, then let it idle.
  5. Test-drive under these conditions: Engine coolant temperature (ECT SENSOR 1) above 158°F (70°C) Transmission in D Throttle position between 14 deg and 29 deg for at least 3 seconds
  6. Monitor the OBD STATUS for DTC P2227 in the DTCs MENU with the HDS. Does the HDS indicate FAILED? YES - Go to step 7 . NO - If the HDS indicates PASSED, intermittent failure, the system is OK at this time. If the HDS indicates NOT COMPLETED, Go to step 4 and recheck.
  7. Check the intake air system for clogging or restrictions (foreign material, dirty air cleaner element, etc). Is the intake air system clogged or restricted? YES - Remove the clog or restriction, then go to step 9 . NO - Go to step 8 .
  8. Update the PCM if it does not have the latest software (see «PCM UPDATE»(ref-333558-S24141467512009072100000) ), or substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-333557-S35070474232009072100000) ).
  9. Start the engine. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
  10. Test-drive under these conditions: Engine coolant temperature (ECT SENSOR 1) above 158°F (70°C) Transmission in D Throttle position between 14 deg and 29 deg for at least 3 seconds
  11. Check for Pending or Confirmed DTCs with the HDS. Is DTC P2227 indicated? YES - Check for poor connections or loose terminals at the PCM. If the PCM was updated, substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-333557-S35070474232009072100000) ), then go to step 9 . If the PCM was substituted, go to step 1 . NO - Go to step 12 .
  12. Monitor the OBD STATUS for DTC P2227 in the DTCs MENU with the HDS. Does the HDS indicate PASSED? YES - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see «PCM REPLACEMENT»(ref-333558-S09775742392009072100000) ). If any other Pending or Confirmed DTCs were indicated in step 11 , go to the indicated DTC's troubleshooting. • NO - If the HDS indicates FAILED, check for poor connections or loose terminals at the PCM. If the PCM was updated, substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-333557-S35070474232009072100000) ), then go to step 9 . If the PCM was substituted, go to step 1 . If the HDS indicates NOT COMPLETED, go to step 9 .

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