U1171
Invalid Or Missing Data For Cellular Phone / Paging System
U1171 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Cellular Phone / Paging System. Common causes: communication module software failure, damage to the antenna or its connections. Estimated repair cost: $33–167.
Symptoms
- Bluetooth or hands-free system does not work
- Error on the instrument panel
- Lost connection to phone
- Emergency call button does not work
- Voice control issues
Causes
- Communication module software failure
- Damage to the antenna or its connections
- Problems with the wiring harness to the communication module
- Malfunction of the phone/Bluetooth module itself
- Corrosion of contacts or connectors
How to Fix
- Check communication module connections
- Inspect the wiring harness for damage
- Try to reboot the system (disconnect the battery for 10 minutes)
- Update system software
- Replacing the communication module if necessary
Related codes
FAQ
What does the U1171 code mean?
U1171 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Cellular Phone / Paging System
What causes a U1171 error code?
The most common causes of U1171 include: Communication module software failure; Damage to the antenna or its connections; Problems with the wiring harness to the communication module; Malfunction of the phone/Bluetooth module itself.
How do I fix a U1171 diagnostic trouble code?
To fix U1171: Check communication module connections. Inspect the wiring harness for damage. Try to reboot the system (disconnect the battery for 10 minutes). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1171?
Yes, but get it checked soon
How much does it cost to fix U1171?
The estimated repair cost for U1171 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat