U1088
Loss of Communication with Key Fob
2001-2005 BMW 325i E46 2.5L I6 🇨🇦
Low SeverityNetwork
Description
The vehicle cannot communicate with the key fob for keyless entry or push-button start.
Symptoms
- Keyless entry not working
- Push-button start not detecting key
- Key fob not recognized
- Place key in backup location message
Common Causes
- Key fob battery dead
- Key fob internal failure
- Vehicle receiver failure
- Fuse blown
- Antenna module failure
- RF interference
Diagnostic Steps
- Replace key fob battery
- Test with spare key fob
- Check keyless entry receiver fuse
- Test key fob signal with diagnostic tool
- Check for RF interference sources
Repair Notes
Replace key fob battery first. Test with second key. If both keys fail, check vehicle receiver module.
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
U1088 on Other Vehicles
Common Questions
What does code U1088 mean on a 2001-2005 BMW 325i E46?
U1088 stands for "Loss of Communication with Key Fob". The vehicle cannot communicate with the key fob for keyless entry or push-button start.
What are the symptoms of U1088 on a BMW 325i E46?
Common symptoms of U1088 include: Keyless entry not working, Push-button start not detecting key, Key fob not recognized, Place key in backup location message.
What causes U1088 on a 2001-2005 BMW 325i E46?
Common causes of U1088 include: Key fob battery dead, Key fob internal failure, Vehicle receiver failure, Fuse blown, Antenna module failure, RF interference.