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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 44 (2.0L - DTCS P0401 To P04C1) >> DTC Troubleshooting >> P0405 EGR Position Sensor Circuit Low >> Possible Causes

Possible Causes

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Possible Causes
5-VOLT SUPPLY CIRCUIT OPEN/HIGH RESISTANCE
5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
EGR VALVE POSITION SIGNAL CIRCUIT SHORTED TO GROUND
EGR VALVE POSITION SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT
EGR VALVE ASSEMBLY
POWERTRAIN CONTROL MODULE

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