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Home >> Mazda >> 2005 >> 3 SP23, 4D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System] >> DTC P2229 >> Diagnostic procedure
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Diagnostic procedure

DTC P2229 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED 
  • Has FREEZE FRAME DATA been recorded?
 Yes Go to the next step.
No Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Verify related Technical Service Bulletin(s) repair information availability.
  • Is any related repair information available?
 Yes Perform repair or diagnosis according to the available repair information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 INSPECT CONNECTION OF BARO SENSOR CONNECTOR 
  • Turn the ignition switch off.
  • Verify that the BARO sensor connector is connected securely.
  • Is connection okay?
 Yes Go to the next step.
No Reconnect the connector, then go to Step 9.
4 INSPECT BARO SENSOR CONNECTOR FOR POOR CONNECTION 
  • Disconnect the BARO sensor connector.
  • Inspect for poor connection (damaged/pulled-out pins, corrosion, etc.).
  • Is there any malfunction?
 Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
5 INSPECT BARO SENSOR MALFUNCTION  Yes Go to the next step.
No Replace the BARO sensor, then go to Step 9.
6 VERIFY BARO SENSOR SIGNAL CIRCUIT FOR SHORT TO REFERENCE VOLTAGE CIRCUIT 
  • Measure the voltage between BARO sensor terminal A and body ground.
  • Is the voltage above 4.43 V? 
 Yes Repair or replace short to power supply, then go to Step 9.
No Go to the next step.
7 INSPECT PCM CONNECTOR FOR POOR CONNECTION 
  • Disconnect PCM connector.
  • Inspect for poor connection at terminals (damaged/pulled-out pins, corrosion, etc.).
  • Is there malfunction?
 Yes Repair the terminal, then go to Step 9.
No Go to the next step.
8 VERIFY BARO SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT 
  • Inspect for continuity between the following terminals:
    • Between BARO sensor terminal A and PCM terminal 1AG
    • Between BARO sensor terminal B and PCM terminal 1AA
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness for open circuit, then go to Step 9.
9 VERIFY TROUBLESHOOTING OF DTC P2229 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Turn the ignition switch to the ON position (Engine off).
  • Clear the DTC from the PCM memory using the WDS or equivalent.
  • Start the engine.
  • Is the same DTC present?
 Yes Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION .)
No No concern is detected. Go to the next step.
10 VERIFY AFTER REPAIR PROCEDURE  Yes Go to applicable DTC inspection.
(See DTC TABLE )
No Troubleshooting completed.
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