Dtc P2229 - Mazda 6 2002 Workshop Manual

DTC P2229

DTC P2229 BARO sensor circuit high input
• PCM monitors input voltage from BARO sensor. If input voltage at PCM terminal 1G is above 4.92 V, PCM
determines that BARO sensor circuit has malfunction.
Diagnostic support note
DETECTION
• This is a continuous monitor (CCM).
CONDITION
• MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
• PENDING CODE is available if PCM detects the above malfunction condition.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.
• BARO sensor malfunction
• Connector or terminal malfunction
POSSIBLE • Open circuit in wiring between BARO sensor terminal A and PCM terminal 1G
CAUSE • Open circuit in wiring between BARO sensor terminal B and PCM terminal 2H
• Short to power circuit in wiring between BARO sensor terminal A and PCM terminal 1G
• PCM malfunction
Diagnostic procedure
STEP
1 PERFORM DTC CONFIRMATION PROCEDURE
• Perform DTC CONFIRMATION PROCEDURE.
(See F–66 DTC CONFIRMATION
PROCEDURE.)
• Is same DTC present?
2 INSPECT CONNECTION OF BARO SENSOR
CONNECTOR
• Turn ignition key to OFF.
• Verify that BARO sensor connector is
connected securely.
• Is connection okay?
3 INSPECT BARO SENSOR CONNECTOR FOR
POOR CONNECTION
• Disconnect the BARO sensor connector.
• Inspect for poor connection (damaged/pulled-
out pins, corrosion, etc.).
• Is there malfunction?
F–174
ON-BOARD DIAGNOSTIC
INSPECTION
Yes Go to net step.
No Intermittent concern eists. Go to INTERMITTENT
CONCERN TROUBLESHOOTING procedure.
(See F–227 INTERMITTENT CONCERN
TROUBLESHOOTING.)
Yes Go to net step.
No Reconnect the connector, then go to Step 8.
Yes Repair or replace suspected terminal, then go to Step 8.
No Go to net step.
A6E397001083W07
ACTION