Lost Communication with Gear Shift Control Module
2012-2016 Tesla Model S 85 kWh Single Motor RWD 🇩🇪
Description
Cannot communicate with the gear shift module that manages electronic shifter input.
Symptoms
- Shifter inoperative
- Transmission stuck in park
- Shift indicator not matching
- Cannot select gears
Common Causes
- Shift module power failure
- CAN bus wiring issue
- Shift module failure
- Shifter cable disconnected
- Fuse blown
Diagnostic Steps
- Check shift module fuse
- Test module power and ground
- Inspect CAN wiring
- Check shifter mechanism
- Test shift position switches
Repair Notes
Check shift module power supply. Verify shifter mechanism is functional.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0103 on Other Vehicles
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Tesla Model 3
2017-2020 Long Range Dual Motor AWD
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2017-2020 Performance Dual Motor AWD
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2021-2024 Long Range Dual Motor AWD
Tesla Model 3
2021-2024 Performance Dual Motor AWD
Common Questions
What does code U0103 mean on a 2012-2016 Tesla Model S?
U0103 stands for "Lost Communication with Gear Shift Control Module". Cannot communicate with the gear shift module that manages electronic shifter input.
What are the symptoms of U0103 on a Tesla Model S?
Common symptoms of U0103 include: Shifter inoperative, Transmission stuck in park, Shift indicator not matching, Cannot select gears.
What causes U0103 on a 2012-2016 Tesla Model S?
Common causes of U0103 include: Shift module power failure, CAN bus wiring issue, Shift module failure, Shifter cable disconnected, Fuse blown.