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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 ((Automatic Headlamp Leveling Module (AHLM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U1501-00-Implausible Message Data Length Received From ECM/Pcm >> Possible Causes

Possible Causes

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Possible Causes
WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE
DTCs RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
CAN C BUS CIRCUITS OPEN OR SHORTED
PCM DTCs PRESENT
PCM
AUTOMATIC HEADLAMP LEVELING MODULE (AHLM)