Fig. 395: DTC Troubleshooting Flow Chart (P2229)
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
P2229 BARO SENSOR CIRCUIT HIGH VOLTAGE
1. Problem verification:
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1. Turn the ignition switch to ON (II).
2. Check the parameter(s) below with the HDS.
Threshold
Values
Current conditions
Unit Values Unit
Signal
BARO SENSOR More than 4.49 V
Do the current condition(s) match the threshold?
YES : The failure is duplicated. 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
UPDATE or PCM REMOVAL AND INSTALLATION , then do the repair verification .
NO : Intermittent failure, the system is OK at this time.
REPAIR VERIFICATION
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1. Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC Pending DTC Freeze Frame
P2229 BARO SENSOR CIRCUIT HIGH VOLTAGE
Is DTC P2229 indicated?
YES : Check for poor connections or loose terminals at the PCM. If the PCM was updated, substitute a
known-good PCM See PCM REMOVAL AND INSTALLATION or PCM UPDATE , then recheck. If the
PCM was substituted, go to step 1.
NO : Troubleshooting is complete. If the PCM was substituted, replace the original PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE . If any other Pending or Confirmed DTCs are
indicated, go to the indicated DTC's troubleshooting.
DTC P2238: A/F SENSOR (SENSOR 1) AFS+ CIRCUIT LOW VOLTAGE
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