Lost Communication With Navigation Control Module

Where it lives

For U0163, the part to look at first is the module named here.

Check these first

• A failed navigation control module
• Corrosion or damage on the navigation module harness
• The navigation system installed wrong
• Outdated firmware in the navigation module
• Electrical interference on the navigation network

What to do next

1. Check power and ground at the navigation control module
2. Inspect the navigation module harness for corrosion
3. Verify the navigation system is installed correctly
4. Update the navigation module firmware
5. Check for electrical interference on the network
6. Clear the code and retest

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