Archives: DTC Codes

What Does Code B1331 Mean? DTC B1331 signifies a circuit malfunction within the vehicle’s decklid (trunk) ajar sensing system. This code is typically set by the Body Control Module (BCM) or a similar module like the General Electronic Module (GEM) in older vehicles, rather than the Engine Control Module (ECM) or Powertrain Control Module (PCM), […]

What Does Code B1332 Mean? DTC B1332 signifies a “Decklid Ajar Rear Door Circuit Open” fault, which is typically registered by the Body Control Module (BCM) or General Electronic Module (GEM) rather than the Powertrain Control Module (PCM). This code specifically indicates that the BCM/GEM has detected an open circuit condition in the electrical pathway […]

What Does Code B1333 Mean? Diagnostic Trouble Code (DTC) B1333 indicates a specific electrical fault within the vehicle’s body control system, primarily pertaining to the decklid (trunk/hatch) ajar detection circuit. The description “Decklid Ajar Rear Door Circuit Short To Battery” signifies that the Body Control Module (BCM), or an equivalent integrated control unit, is detecting […]

What Does Code B1334 Mean? The OBD-II diagnostic trouble code B1334 indicates a “Decklid Ajar Rear Door Circuit Short To Ground.” This code is set by the Body Control Module (BCM), or in some vehicle architectures, a dedicated Rear Electronic Module (REM) or similar chassis control module. These modules are responsible for monitoring the status […]

What Does Code B1335 Mean? DTC B1335 signifies a “Rear Right Door Ajar Circuit Failure.” This diagnostic trouble code is typically generated by the Body Control Module (BCM), or in some vehicle architectures, directly by the Powertrain Control Module (PCM) or Instrument Cluster, which monitors the electrical integrity of the rear right door ajar switch […]

What Does Code B1336 Mean? DTC B1336 signifies an “Open Circuit” condition within the electrical monitoring system for the rear right (RR) door ajar switch. This diagnostic trouble code is typically registered by the Body Control Module (BCM), or an equivalent integrated body computer such as a Smart Junction Box (SJB) or General Module, rather […]

What Does Code B1337 Mean? DTC B1337 signifies a diagnostic condition indicating a Rear Right Door Ajar Switch Circuit Short To Battery. This code is typically set by the Body Control Module (BCM) or General Module (GM), which is responsible for monitoring various body electrical systems, including door status. The BCM/GM continuously monitors the voltage […]

What Does Code B1338 Mean? DTC B1338 indicates a fault within the Right Rear (RR) Door Ajar circuit, specifically signaling a “Short To Ground” condition. This diagnostic trouble code is typically set by the Body Control Module (BCM) or, in some vehicle architectures, the General Electronic Module (GEM). These control modules are responsible for monitoring […]

What Does Code B1342 Mean? The diagnostic trouble code B1342 signifies an internal fault within a specific Electronic Control Unit (ECU) or control module. While the generic brief description states “ECU Is Defective,” it is crucial to understand that for a B-code (Body series), this typically refers to a control module beyond the primary Powertrain […]

What Does Code B1344 Mean? DTC B1344 indicates that the Body Control Module (BCM), or a specific control module responsible for body electrical functions such as a General Electronic Module (GEM) or Rear Electronic Module (REM), has detected an open circuit in the heated backlite input circuit. The “heated backlite” refers to the rear window […]