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F–174 ON-BOARD DIAGNOSTIC DTC P2229 A6E397001083W07 Diagnostic procedure DTC P2229 BARO sensor circuit high input DETECTION CONDITION • 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 • This is a continuous monitor (CCM). • 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. POSSIBLE CAUSE • BARO sensor malfunction • Connector or terminal malfunction • Open circuit in wiring between BARO sensor terminal A and PCM terminal 1G • 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 STEP INSPECTION ACTION 1 PERFORM DTC CONFIRMATION PROCEDURE • Perform DTC CONFIRMATION PROCEDURE. .) • Is same DTC present? Yes Go to next step. No Intermittent concern exists. Go to INTERMITTENT 2 INSPECT CONNECTION OF BARO SENSOR • Turn ignition key to OFF. • Verify that BARO sensor connector is connected securely. • Is connection okay? Yes Go to next step. No Reconnect the connector, then go to Step 8. 3 INSPECT BARO SENSOR CONNECTOR FOR • Disconnect the BARO sensor connector. • Inspect for poor connection (damaged/pulled- out pins, corrosion, etc.). • Is there malfunction? Yes Repair or replace suspected terminal, then go to Step 8. No Go to next step. |