B1170 The gauge control module lost communication with the VSA modulator control unit
This fault is part of the Honda ABS and VSA warning light guide. It covers the system and the order to check it.
What does B1170 mean on a Honda?
B1170. The gauge control module lost communication with the VSA modulator control unit. Stability warning messages may not reach the cluster. This Honda-enhanced code applies to Honda and Acura models that use this code.
Common causes of B1170
- Faulty Vehicle Stability Assist (VSA) Modulator-Control Unit
- Faulty Gauge Control Module
- Gauge Control Module harness is open or shorted
- Gauge Control Module circuit poor electrical connection
- Corroded or loose connector pins on the data link
How to fix B1170
- Confirm the code with a scan tool and check every module on the system for related faults
- Inspect the connectors at both ends of the data link for corrosion, moisture, and loose pins
- Test the data link wiring for opens and shorts with a multimeter
- Repair any damaged wiring or connector before replacing a module
- Replace the gauge control module that fails testing, then clear codes and retest
Sources and review
- Last updated 2026-09-26.