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Home >> Acura >> 2009 >> CSX Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> PGM-FI System >> DTC Troubleshooting >> DTC P2227: BARO Sensor Circuit Range/Performance Problem

DTC P2227: BARO Sensor Circuit Range/Performance Problem

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 (760 mmHg, 29.9 in.Hg), 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 (min-1 ) without load (in Park or neutral) until the radiator fan comes on, then let it idle.
  5. Test-drive under these conditions:
    • Engine coolant temperature (ECT SENSOR 1) above 70°C (158°F)
    • A/T in D position (M/T in 4th gear)
    • REL TP SENSOR between 12 degrees and 20 degrees for at least 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, the 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 (see UPDATING THE ECM/PCM ), or substitute a known-good ECM/PCM (see SUBSTITUTING THE ECM/PCM ).
  8. Start the engine. Hold the engine speed at 3,000 rpm (min-1 ) without load (in Park or neutral) until the radiator fan comes on, then let it idle.
  9. Test-drive under these conditions:
    • Engine coolant temperature (ECT SENSOR 1) above 70°C (158°F)
    • A/T in D position (M/T in 4th gear)
    • REL TP SENSOR between 12 degrees and 20 degrees for at least 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 SUBSTITUTING THE ECM/PCM ), 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 PASSED? 

    YES  -If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM (see ECM/PCM REPLACEMENT  ). 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 SUBSTITUTING THE ECM/PCM ), then go to step  8. If the ECM/PCM was substituted, go to step  1. If the screen indicates NOT COMPLETED, go to step  8.

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