The B1342 OBDII diagnostic code is also defined as GEM (Generic Control Module) failure. It refers to a problem detected in one or more of the vehicle’s control modules. In many applications, the PCM (Powertrain Control Module) performs, monitors, and executes several functions that may or may not affect the engine, transmission, and fuel delivery management. In some vehicles, this module also monitors and manages non-engine and non-fuel-related functions.
The control modules related to the B1342 code may vary according to the manufacturer. The most common of them are the power steering module, ignition module, airbags, among others. Take into account some manufacturers include in their vehicles up to 18 modules or more. These are responsible for the operation of the power window, navigation, and information systems. This code generally applies to body control problems.