U0103
Lost Communication with Gear Shift Control Module
2006-2011 BMW 325i 3.0L I6 N52
High SeverityNetworkGeneric (SAE)
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
Common Questions
What does code U0103 mean on a 2006-2011 BMW 325i?
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 BMW 325i?
Common symptoms of U0103 include: Shifter inoperative, Transmission stuck in park, Shift indicator not matching, Cannot select gears.
What causes U0103 on a 2006-2011 BMW 325i?
Common causes of U0103 include: Shift module power failure, CAN bus wiring issue, Shift module failure, Shifter cable disconnected, Fuse blown.