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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (2.0L - DTCS P2299 To P2453) >> DTC Troubleshooting >> P2402 Evaporative Emission System Leak Detection Pump Control Circuit High >> Possible Causes

Possible Causes

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Possible Causes
ELCM PUMP CONTROL CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY
EVAPORATIVE LEAK CHECK MODULE (ELCM)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to:  2.0L - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .