U0117
NetworkModule Communicationlow severityLost Communication With GPS Control Module
What U0117 Means
The vehicle network has lost communication with the GPS control module. Usually a wiring, power, or module failure affecting navigation.
Symptoms
- Navigation not working
- No GPS location shown
- Info screen errors
Common Causes
- Faulty bus wiring or connectors
- Loose or corroded ground
- Failed GPS module
- Blown fuse or power fault
Diagnostic Steps
- Scan modules for communication faults
- Verify GPS module power and ground
- Inspect bus wiring and connectors
- Check bus voltage readings
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Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
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Serious DIY~$100
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Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
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