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Home >> Jeep >> 2021 >> Grand Cherokee L Altitude, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> (Instrument Cluster - Electrical Diagnostics) >> DTC Troubleshooting >> U0158-00-Lost Communication With Head Up Display Module >> Possible Causes

Possible Causes

Possible Causes
POOR CONNECTION
FUSED B+ CIRCUIT OPEN OR HIGH RESISTANCE
GROUND CIRCUIT OPEN OR HIGH RESISTANCE
LIN BUS CIRCUIT OPEN OR HIGH RESISTANCE
LIN BUS CIRCUIT SHORTED TO VOLTAGE OR GROUND
HEADS UP DISPLAY (HUD)
INSTRUMENT PANEL CLUSTER (IPC)

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