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Symptom: P0235-TURBOCHARGER BOOST SENSOR SIGNAL LOW EX- CEEDED When Monitored and Set Condition: P0235-TURBOCHARGER BOOST SENSOR SIGNAL LOW EXCEEDED When Monitored: With the ignition on. Set Condition: The turbocharger boost pressure sensor signal voltage stays below 0.15 volt for at least 2 seconds. POSSIBLE CAUSES INTERMITTENT CONDITION 5-VOLT SUPPLY CIRCUIT OPEN OR SHORTED TO GROUND TURBOCHARGER BOOST PRESSURE/INTAKE AIR TEMPERATURE SENSOR BOOST PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND BOOST PRESSURE SENSOR SIGNAL AND GROUND CIRCUITS SHORTED TOGETHER BOOST PRESSURE SENSOR SIGNAL CIRCUIT OPEN ENGINE CONTROL MODULE TEST ACTION APPLICABILITY 1 Turn the ignition on. All Yes → No → 2 Turn the ignition off. All Yes → No → Repair the 5-volt Supply circuit for an open or short to ground. 56 DRIVEABILITY - DIESEL |