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Acura DTC

Acura DTC B1786

Manufacture

Acura DTC

Code

B1786

Definition

HandsFreeLink Control Unit Lost Communication with Gauge Control Module (VEHINFO Frame)

Description

Poor communication with the HandsFreeLink Control Unit and the Gauge Control Module . NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

Cause

  • Poor connections or loose terminals at the HandsFreeLink control unitBlown fuse in the under-dash fuse relay boxOpen in the wire(s) between body ground and the gauge control moduleOpen in the wire between power tailgate control unit and the gauge control moduleFaulty HandsFreeLink control unitFaulty Gauge Control Module

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