This diagnostic trouble code indicates a communication failure between the vehicle's main network and a secondary module managing anti-entrapment safety systems. This module typically monitors power windows or sunroofs to prevent injury during automatic closing. Loss of data exchange triggers the warning light and may disable automated features.
Damaged, frayed, or corroded wires prevent data signals from reaching the module.
A blown fuse cuts power to the module, causing it to go offline.
Loose pins or corrosion at the connector interrupt the network signal.
The internal circuitry of the Entrapment Control Module B has failed.
Shorts or opens on the CAN bus network disrupt communication for multiple systems.
Internal network interface failure in the main computer is rare and should be considered only after ruling out wiring and the specific module.
No, this code indicates a loss of communication with a body module, and replacing the engine computer is almost never the correct fix.
Functionality may be lost or limited, as the safety monitoring system is offline.
Repairing wiring harnesses, cleaning connectors, or replacing blown fuses are the most frequent resolutions.
No, the fault condition must be repaired before the code can be permanently cleared.