What causes B1156 on a Honda?

Combination switch control unit not sending wiper messages Gauge control module not receiving the wiper signal Break or short in the gauge control module wiring Corroded connector at the cluster or switch Loose data link pins between the modules

How do I fix B1156 on a Honda?

Scan all modules and note the missing wiper message Check combination switch and gauge module power and ground Measure the data link between the switch and the cluster Repair the wiring or connector fault found Replace the module that fails testing Clear the code and retest

B1156 The gauge control module lost communication with the combination switch control unit

Q: What does B1156 mean on a Honda?

B1156. The gauge control module lost communication with the combination switch control unit. Wiper switch messages may not reach the cluster. Applies to Honda and Acura models that use this code.

Category: Network Communications
Severity: Check Engine Light
Applies to: Honda and Acura models that use this code

What does B1156 mean on a Honda?

B1156. The gauge control module lost communication with the combination switch control unit. Wiper switch messages may not reach the cluster. This Honda-enhanced code applies to Honda and Acura models that use this code.

Common causes of B1156

Combination switch control unit not sending wiper messages
Gauge control module not receiving the wiper signal
Break or short in the gauge control module wiring
Corroded connector at the cluster or switch
Loose data link pins between the modules

How to fix B1156

Scan all modules and note the missing wiper message
Check combination switch and gauge module power and ground
Measure the data link between the switch and the cluster
Repair the wiring or connector fault found
Replace the module that fails testing
Clear the code and retest

Sources and review

Last updated 2026-10-10.