Lost Communication With Personal Computer Interface Module
What does U0192 mean?
The U0192 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Personal Computer Interface Module. This is a low severity code.
Common Symptoms
- Vehicle data interface not connecting
- OBD-II diagnostic port communication issues
- Telematics gateway not responding
- Connected vehicle services unavailable
- Fleet management system cannot read vehicle data
Probable Causes (Ranked by Likelihood)
- Failed gateway or interface module Very High
- Damaged OBD-II port or wiring High
- Aftermarket device on OBD port causing conflict Moderate
- CAN bus communication fault at gateway Moderate
Step-by-Step Diagnostic Procedure
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Remove any aftermarket OBD-II devices and retest
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Check the OBD-II port pins for bent or damaged contacts
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Verify power and ground at the OBD-II connector (pins 16 and 4/5)
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Inspect wiring from OBD port to the gateway module
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Check CAN bus signals at the OBD-II port
Frequently Asked Questions
Can I drive with code U0192?
Yes, safe to drive. The vehicle interface for diagnostics and telematics may not function but driving systems are not affected.
What causes U0192?
Often caused by aftermarket OBD plug-in devices (insurance dongles, tuners, GPS trackers) that interfere with the communication bus. Remove them first.
Is U0192 expensive to fix?
Usually $100 to $500. Removing an aftermarket OBD device is free and often fixes the problem. Port or gateway repairs cost more.