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DTC codes / U01xx · Lost communication with a control module / U0187

U0187Lost Communication With Digital Disc Player/Changer Module 'A'

U0187 is a generic communication fault indicating that the module responsible for the digital disc player or changer (often called the CD changer or DVD player) has stopped exchanging data with the vehicle's main network. The computer that set the code, typically the body control module or audio gateway, detected that it has not received a valid message from the disc player module for a set period, usually a few seconds.

SystemNetwork
Code typeGeneric (all makes)
SeverityLow
Fix difficultyIntermediate
AreaLost communication with a control module

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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