Code Definition

B1150 — Gauge Control Module Circuit Malfunction

System: Body  |  Type: Manufacturer-Specific  |  Make: Honda

About B1150

B1150 is a manufacturer-specific body diagnostic trouble code recorded for Honda vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1150 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B1150 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Instrument Cluster, referred to by Honda as the Gauge Control Module, continuously monitors its supply voltage, ground integrity, and data communications with the Body Control Module (BCM) or Powertrain Control Module (PCM) over the CAN or LIN bus. The cluster reports vehicle speed, engine RPM, temperature, fuel level, and warning lamp status, receiving much of this data from other modules on the network. DTC B1150 is logged when the module detects an abnormal operating condition, such as supply voltage outside the expected range (typically below approximately 9 volts or above approximatel...

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