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Symptom: P0235-TURBOCHARGER BOOST SENSOR SIGNAL HIGH EX- When Monitored and Set Condition: P0235-TURBOCHARGER BOOST SENSOR SIGNAL HIGH EXCEEDED When Monitored: With the ignition on. Set Condition: The turbocharger boost pressure sensor signal voltage exceeds 4.80 volts for at least 2 seconds. POSSIBLE CAUSES INTERMITTENT CONDITION 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE BOOST PRESSURE SENSOR GROUND CIRCUIT OPEN BOOST PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE TURBOCHARGER BOOST PRESSURE/INTAKE AIR TEMPERATURE SENSOR POOR CONNECTOR TERMINAL CONTACT ENGINE CONTROL MODULE (5-VOLT SUPPLY SHORTED TO VOLTAGE) ENGINE CONTROL MODULE (INTERNAL) ENGINE CONTROL MODULE (SENSOR SIGNAL SHORTED TO VOLTAGE) TEST ACTION APPLICABILITY 1 Turn the ignition on. All Yes → No → 2 Turn the ignition off. All Yes → No → 64 DRIVEABILITY - DIESEL |