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Home >> Jeep >> 2024 >> Grand Cherokee Altitude X, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 55 (Hybrid Control Processor Module (HCP) - DTCS U0646-00 To U12AF-00) >> DTC Troubleshooting >> U1129-00-Lost Communication With Battery Level Indicator Module >> Possible Causes

Possible Causes

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Possible Causes
LIN BUS COMMUNICATION DTCS
BATTERY CHARGE INDICATOR B+ CIRCUIT OPEN
BATTERY CHARGE INDICATOR GROUND CIRCUIT OPEN
LIN BUS CIRCUIT OPEN
BATTERY CHARGE INDICATOR

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