Archives: DTC Codes

What Does Code B1291 Mean? DTC B1291, “Servo Motor Potentiometer Airintake Right Circuit Short To Ground,” is a manufacturer-specific diagnostic trouble code indicating an electrical fault within the circuit of the position sensor (potentiometer) for an air intake servo motor, specifically identified as being on the “right” side or bank of the engine. This servo […]

What Does Code B1292 Mean? DTC B1292 signifies a detected malfunction within the Battery Power Relay circuit. This code is typically set by a Body Control Module (BCM), Power Distribution Module (PDM), or occasionally the Powertrain Control Module (PCM), depending on the vehicle’s electrical architecture. The battery power relay is a critical component responsible for […]

What Does Code B1293 Mean? DTC B1293 indicates an open circuit condition detected within the vehicle’s Battery Power Relay circuit. The Battery Power Relay, often referred to as the Main Relay or PCM Power Relay, is a critical electromechanical switch responsible for supplying switched battery voltage to various essential vehicle components and modules. This typically […]

What Does Code B1294 Mean? DTC B1294 signifies a detected fault within the electrical circuit of a dedicated Battery Power Relay, specifically indicating a short circuit to battery voltage (B+). The Powertrain Control Module (PCM) or Engine Control Module (ECM), often in conjunction with a Body Control Module (BCM) or another system controller, is responsible […]

What Does Code B1295 Mean? DTC B1295 signifies a detected short to ground within the control circuit of the vehicle’s Battery Power Relay. This relay, often referred to as the Main Relay or System Power Relay, is a critical component responsible for supplying primary power to numerous essential modules and systems, including but not limited […]

What Does Code B1296 Mean? DTC B1296, often described as “Power Supply Sensor Circuit Failure,” indicates that a vehicle’s Body Control Module (BCM) or another associated control module (e.g., HVAC control module, ABS module, Supplemental Restraint System module) has detected an abnormality in the electrical circuit providing power to a specific sensor. Being a ‘B’ […]

What Does Code B1297 Mean? Diagnostic Trouble Code B1297, defined as “Power Supply Sensor Circuit Open,” signifies that the vehicle’s Body Control Module (BCM) or another integrated control unit (such as a Smart Junction Box or General Module, depending on manufacturer specifics) has detected a complete interruption in the electrical circuit designated for a critical […]

What Does Code B1298 Mean? The Diagnostic Trouble Code (DTC) B1298 signifies that a control module has detected an abnormal voltage condition on the power supply or signal return circuit of a monitored sensor. Specifically, it indicates a “short to battery,” meaning the sensor’s dedicated power feed or signal circuit is receiving full battery voltage […]

What Does Code B1299 Mean? DTC B1299 signifies a “Power Supply Sensor Circuit Short To Ground.” This code is set when a Body Control Module (BCM), Anti-lock Brake System (ABS) module, Supplemental Restraint System (SRS) module, or another auxiliary control unit detects an unintended, low-resistance path between the dedicated power supply circuit for a particular […]

What Does Code B1300 Mean? The diagnostic trouble code B1300 indicates a Power Door Lock Circuit Failure. This code is typically logged by the Body Control Module (BCM), General Electronic Module (GEM), or a similar integrated body control unit, rather than the Powertrain Control Module (PCM/ECM) directly, though the PCM may store it if it […]