Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the U1A03 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
The Diagnostic Trouble Code (DTC) will set when the Telematics Control Unit (TCU) SIM card is not inserted or unable to be read.
Need more information on how to fix the U1A03 code? Get Access to Factory Service Manuals
Get the U1A03 code diagnosed by a professional: Find a repair shop in your area