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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 40 (2.0L - DTCS P0088 To P012D) >> DTC Troubleshooting >> P012D Turbocharger / Supercharger Inlet Air Pressure Sensor 1 Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
POSSIBLE CAUSES
5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
BOOST PRESSURE SENSOR PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE
BOOST PRESSURE SENSOR PRESSURE SIGNAL CIRCUIT SHORTED TO THE 5-VOLT SUPPLY CIRCUIT
BOOST PRESSURE SENSOR PRESSURE SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE
BOOST PRESSURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .