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P0550 PSP SENSOR EC-823 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE FOR USA AND CANADA] C D E F G H I J K L M A EC N P O 1. Disconnect power steering pressure (PSP) sensor harness con- nector. 2. Turn ignition switch ON. 3. Check voltage between PSP sensor terminal 3 and ground with CONSULT or tester. OK or NG OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 3. CHECK PSP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check harness continuity between PSP sensor terminal 1 and ECM terminal 72. Refer to Wiring Diagram. 4. Also check harness for short to ground and short to power. OK >> GO TO 4. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 4. CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Check harness continuity between ECM terminal 65 and PSP sensor terminal 2. 2. Also check harness for short to ground and short to power. OK >> GO TO 5. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 5. CHECK PSP SENSOR EC-823, "Component Inspection" OK or NG OK >> GO TO 6. NG >> Replace PSP sensor. Refer to ST-20, "Removal and Installation" 6. CHECK INTERMITTENT INCIDENT GI-42, "Intermittent Incident" . >> INSPECTION END Component Inspection INFOID:0000000009481495 POWER STEERING PRESSURE SENSOR 1. Reconnect all harness connectors disconnected. BBIA0552E Voltage: Approximately 5V Continuity should exist. Continuity should exist. |