LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 46 (2.0L - DTCS P0351 To P0406) >> DTC Troubleshooting >> P0405 EGR Position Sensor Circuit Low >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
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:  2.0L - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .