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Home >> Jeep >> 2018 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (3.0L Diesel - DTCS P0403-00 To P061C-00) >> DTC Troubleshooting >> P0406-00-EGR Position Sensor Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
(K683) EGR POSITION SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K683) EGR POSITION SIGNAL CIRCUIT SHORTED TO THE (K834) EGR VALVE 5-VOLT SUPPLY CIRCUIT
(K934) SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE
EGR VALVE
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .