Acura B1786: HandsFreeLink Control Unit Lost Communication with Gauge Control Module (VEHINFO Frame)
Is your scanner showing Acura B1786?
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Acura B1786: HandsFreeLink Control Unit Lost Communication with Gauge Control Module (VEHINFO Frame)
OVERVIEWWhat Does The Acura B1786 Code Mean?
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.
What Are The Potential Causes Of The Acura B1786 Code?
- Poor connections or loose terminals at the HandsFreeLink control unit
- Blown fuse in the under-dash fuse/relay box
- “Open” in the wire(s) between body ground and the gauge control module
- “Open” in the wire between power tailgate control unit and the gauge control module
- Faulty HandsFreeLink control unit
- Faulty Gauge Control Module
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Acura Gauge Control Module
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Acura B1786, DTCDECODE.
