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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 46 (2.0L - DTCS P052B To P0629) >> DTC Troubleshooting >> P0607 Ecu Internal Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
BATTERY VOLTAGE SUPPLY ISSUES
MALFUNCTION IN OTHER ESS DETECTION SYSTEMS (I.E. SEAT BELT, DRIVER DOOR AJAR, BRAKE SWITCH/SENSOR)
PASSENGER ATTEMPTING TO LEAVE VEHICLE DURING AN AUTO-STOP EVENT
PCM POWER AND GROUND CIRCUITS OPEN OR SHORTED
POWERTRAIN CONTROL MODULE (PCM)

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