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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 ((Right Blind Spot Sensor Module (BSM) (RBSS) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0203-00-Lost Communication With Left Front Door Module >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
CAN INTERIOR BUS (+) CIRCUIT SHORTED TO VOLTAGE
CAN INTERIOR BUS (-) CIRCUIT SHORTED TO GROUND
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
DRIVER DOOR MODULE POWER AND GROUND
BCM NOT CONFIGURED CORRECTLY
DRIVER DOOR MODULE
MODULE THAT SET THIS DTC