Lost Communication With Navigation Control Module
What does U0162 mean?
The U0162 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Navigation Control Module. This is a low severity code.
Common Symptoms
- Navigation system not functioning
- Touchscreen display blank or unresponsive
- Audio system may also be affected
- Bluetooth connectivity lost
- Vehicle settings menu inaccessible
Probable Causes (Ranked by Likelihood)
- Failed navigation or infotainment head unit Very High
- Corrupted navigation module software High
- Damaged CAN bus wiring to head unit Moderate
- Power supply issue to navigation module Moderate
Step-by-Step Diagnostic Procedure
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Check for power and ground at the navigation module connector
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Attempt a hard reset by holding the power button for 30 seconds
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Disconnect the battery for 15 minutes and reconnect to reset the module
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Check for CAN bus communication at the module connector
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Verify the module fuse in the interior fuse box
Frequently Asked Questions
Can I drive with code U0162?
Yes, the vehicle is safe to drive. Only navigation, and possibly entertainment and Bluetooth features, will be unavailable.
What causes U0162?
Most often caused by a failed or corrupted infotainment head unit. A software update or hard reset sometimes resolves the issue without replacement.
Is U0162 expensive to fix?
Costs range from $200 for software fixes to $1200 for head unit replacement. Try a hard reset first as it can often resolve software-related failures.