DTC P1144 (PS_RHI): Pressure Sensor Circuit Range/Performance Problem (High Input)

Turn ignition to off. Connect scan tool. Turn ignition and scan tool on. Start engine. Observe atmospheric absolute pressure signal. If sensor value is more than 39.4 in. Hg, replace sensor. If sensor value is less than 39.4 in. Hg, circuit is normal. Check connectors for poor contact.