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Symptom: P0235-BOOST PRESSURE SENSOR SIGNAL VOLTAGE TOO HIGH When Monitored and Set Condition: P0235-BOOST PRESSURE SENSOR SIGNAL VOLTAGE TOO HIGH When Monitored: With the ignition on. Set Condition: The Boost Pressure Sensor Signal voltage exceeds 4.85 volts for at least 2 seconds. POSSIBLE CAUSES INTERMITTENT CONDITION BOOST PRESSURE SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE BOOST PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE BOOST PRESSURE SENSOR GROUND CIRCUIT OPEN BOOST PRESSURE SENSOR POOR CONNECTOR TERMINAL CONTACT ENGINE CONTROL MODULE (INTERNAL) ENGINE CONTROL MODULE (SENSOR SIGNAL SHORTED TO VOLTAGE) TEST ACTION APPLICABILITY 1 NOTE: If the ECM detects and stores a DTC, the ECM also stores the All Yes → Go To 2 No → Go To 8 47 DRIVEABILITY - DIESEL |