U1A03 - Telematics Control Unit SIM Card
U1A03 Possible Causes
- Faulty Telematics Control Unit (TCU)
- Telematics Control Unit harness is open or shorted
- Telematics Control Unit circuit poor electrical connection
How is the U1A03 code repair?Start by checking 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's pins.
What is the cost to diagnose the U1A03 code
Labor: 1.0The cost to diagnose the U1A03 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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- Engine Light ON (or Service Engine Soon Warning Light)
U1A03 MeaningThe Diagnostic Trouble Code (DTC) will set when the Telematics Control Unit (TCU) SIM card is not inserted or unable to be read.
More InformationNeed more information on how to fix the U1A03 code?
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