B1159 ACURA – Gauge Control Module Lost Communication With Multiplex Integrated Control Unit

B1159 ACURA Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B1159 ACURA Possible Causes

Faulty Multiplex Integrated Control Unit (MICU),Faulty Gauge Control Module,Multiplex Integrated Control Unit (MICU) harness is open or shorted,Multiplex Integrated Control Unit (MICU) circuit poor electrical connection

B1159 ACURA Description

The Gauge Control Module monitors the Multiplex Integrated Control Unit (MICU). The Gauge Control Module sets the OBDII code when there is no communication with the MICU (Door Switch Message).