Mazda 6 2002 - Page 272

ON-BOARD DIAGNOSTIC
F175
F
End Of Sie
4 INSPECT BARO SENSOR MALFUNCTiON
• Perform BARO sensor inspection.
(See F60 BAROMETRIC PRESSURE
(BARO) SENSOR INSPECTION.)
• Is BARO sensor okay?
Yes Go to next step.
No Replace BARO sensor, then go to Step 8.
5 VERIFY BARO SENSOR SIGNAL CIRCUIT FOR
SHORT TO REFERENCE VOLTAGE CIRCUIT
• Measure voltage between BARO sensor
terminal A and body ground.
• Is voltage above 4.92 V?
Yes Repair or replace short to power harness, then go to Step
8.
No Go to next step.
6 INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Disconnect PCM connector.
• Inspect for poor connection at terminal 2H
(damaged/pulled-out pins, corrosion, etc.).
• Is there malfunction?
Yes Repair terminal, then go to Step 8.
No Go to next step.
7 VERIFY BARO SENSOR GROUND CIRCUIT
FOR OPEN CIRCUIT
• Inspect for continuity following terminals:
 Between BARO sensor terminal A and PCM
terminal 1G
 Between BARO sensor terminal B and PCM
terminal 2H
• Is there continuity?
Yes Go to next step.
No Repair or replace open harness, then go to Step 8.
8 VERIFY TROUBLESHOOTING OF DTC P2229
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Turn ignition key to ON (Engine OFF).
• Clear DTC from memory using WDS or
equivalent.
• Perform KOEO/KOER self-test.
(See F66 KOEO/KOER SELF-TEST.)
• Is same DTC present?
Yes Replace PCM, then go to next step.
(See F43 PCM REMOVAL/INSTALLATION.)
No No concern is detected. Go to next step.
9 VERIFY AFTER REPAIR PROCEDURE
• Perform After Repair Procedure.
(See F66 AFTER REPAIR PROCEDURE.)
• Is there any DTC present?
Yes Go to applicable DTC troubleshooting.
(See F67 DTC TABLE.)
No Troubleshooting completed.
STEP INSPECTION ACTION