DTC P1451: Barometric Pressure Sensor Performance Problem

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Select DATA LIST mode on scan tool. Observe manifold absolute pressure. Go to SENSOR OPERATING RANGE CHARTS article. If reading is within specification, replace PCM and retest system. If reading is not within specification, check map sensor and map sensor circuit. Go to DTC P0106: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR PERFORMANCE  .