DTC P2227: BARO SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
Fig. 393: DTC Troubleshooting Flow Chart (P2227)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
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Before you troubleshoot, record all freeze data and any on-board
snapshot, and review the general troubleshooting information See HOW
TO TROUBLESHOOT THE A/T SYSTEM or HOW TO TROUBLESHOOT THE
FUEL AND EMISSIONS SYSTEMS .
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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.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P2227 BARO SENSOR CIRCUIT
RANGE/PERFORMANCE PROBLEM
1. BARO Sensor performance check:
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1. Turn the ignition switch to ON (II), and wait 2 seconds.
2. Check the parameter(s) below with the HDS.
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Threshold Current conditions
Values Unit Values Unit
BARO SENSOR About 101 kPa
Signal
Is about 101 kPa (29.9 inHg, 760 mmHg), or about 2.9 V at sea level indicated?
YES : Go to step 2.
NO : Update the PCM See PCM REMOVAL AND INSTALLATION or PCM UPDATE if it does
not have the latest software, or substitute a known-good PCM See PCM REMOVAL AND
INSTALLATION or PCM UPDATE , then do the repair verification .
2. Problem verification:
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1. Clear the DTC with the HDS See HOW TO TROUBLESHOOT THE FUEL AND
EMISSIONS SYSTEMS or HOW TO TROUBLESHOOT THE A/T SYSTEM .
2. 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.
3. Test-drive under these conditions:
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Engine coolant temperature (ECT SENSOR 1) above 158 Β°F (70 Β°C)
Transmission in D
REL TP SENSOR between 16 and 28 degrees for 3 seconds
Current conditions
Signal
Values
Unit
ECT SENSOR 1
REL TP SENSOR
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4. Monitor the OBD STATUS for DTC P2227 with the HDS.
DTC Description
OBD Status
P2227 BARO SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
Does the HDS indicate FAILED?
YES : The failure is duplicated. Go to step 3.
NO : If the HDS indicates PASSED, intermittent failure, the system is OK at this time. If the HDS
indicates NOT COMPLETED, go to step 2-2 and recheck.
3. Intake air system check:
ο‘
1. 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 do the repair verification .
NO : Update the PCM See PCM REMOVAL AND INSTALLATION or PCM UPDATE if it does
not have the latest software, or substitute a known-good PCM See PCM REMOVAL AND
INSTALLATION or PCM UPDATE , then do the repair verification .
REPAIR VERIFICATION (OBD STATUS CHECK)
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1. Turn the ignition switch to ON (II).
2. Reset the PCM with the HDS See HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS
SYSTEMS or HOW TO TROUBLESHOOT THE A/T SYSTEM .
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3. DO THE PCM IDLE LEARN PROCEDURE .
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.
ο‘
5. Test-drive under these conditions:
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Engine coolant temperature (ECT SENSOR 1) above 158 Β°F (70 Β°C)
Transmission in D
REL TP SENSOR between 16 and 28 degrees for 3 seconds
Current conditions
Signal
Values
Unit
ECT SENSOR 1
REL TP SENSOR
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6. Monitor the OBD STATUS for DTC P2227 in the DTCs MENU with the HDS.
DTC Description
OBD Status
P2227 BARO SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
Does the HDS indicate PASSED, FAILED, or NOT COMPLETED?
PASSED : Troubleshooting is complete. If the PCM was substituted, replace the original PCM See PCM
UPDATE or PCM REMOVAL AND INSTALLATION . If any other Pending or Confirmed DTCs are
indicated, go to the indicated DTC's troubleshooting.
FAILED : Go to step 1 and recheck. If the PCM was updated, substitute a known-good PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE , then check the OBD STATUS again.
NOT COMPLETED : Meet the test condition, and check the OBD STATUS again.
DTC P2228: BARO SENSOR CIRCUIT LOW VOLTAGE
Fig. 394: DTC Troubleshooting Flow Chart (P2228)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot, and
review the general troubleshooting information See HOW TO TROUBLESHOOT
THE A/T SYSTEM or HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS
SYSTEMS .
DTC Description
Confirmed DTC Pending DTC Freeze Frame
P2228 BARO SENSOR CIRCUIT LOW VOLTAGE
1. Problem verification:
ο‘
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1. Turn the ignition switch to ON (II).
2. Check the parameter(s) below with the HDS.
Threshold
Current conditions
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