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Home >> Jeep >> 2021 >> Cherokee High Altitude, Automatic T/Case Control >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P152C To P2172 >> DTC Troubleshooting >> P1E28-EGR 1 High Side Control Circuit High >> Possible Causes

Possible Causes

Possible Causes
EGR VALVE MOTOR (+) CIRCUIT SHORTED TO BATTERY VOLTAGE
EGR VALVE MOTOR (+) CIRCUIT SHORTED TO THE EGR VALVE MOTOR (-) CIRCUIT
EGR VALVE ASSEMBLY
POWERTRAIN CONTROL MODULE

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

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