Archives: DTC Codes

What Does Code B1281 Mean? DTC B1281, which translates to “Servo Motor Potentiometer Coolair Circuit Open,” indicates that the Body Control Module (BCM) or a dedicated HVAC control module has detected an open circuit condition in the feedback potentiometer circuit associated with an HVAC servo motor responsible for controlling cool air flow. This specific servo […]

What Does Code B1282 Mean? DTC B1282 signifies a detected electrical fault within the “Coolair” servo motor potentiometer circuit, specifically indicating a short to battery voltage. In modern automotive HVAC systems, servo motors are utilized to actuate blend doors or mode doors, which control the temperature and distribution of air within the cabin. These servo […]

What Does Code B1283 Mean? DTC B1283 signifies an electrical fault within the “Coolair Servo Motor Potentiometer Circuit,” specifically detecting a Short To Ground. This code is typically set by the vehicle’s HVAC (Heating, Ventilation, and Air Conditioning) control module, which may be a dedicated module, integrated into the Body Control Module (BCM), or in […]

What Does Code B1284 Mean? DTC B1284 signifies a circuit malfunction within the servo motor potentiometer assembly responsible for controlling the left air intake system. While “B” codes typically relate to the body control module, in many modern vehicles, particularly those with advanced intake systems, these codes can be generated by or interpreted by the […]

What Does Code B1285 Mean? DTC B1285 signifies a detected open circuit within the potentiometer feedback circuit for the left air intake servo motor, which is typically part of the Heating, Ventilation, and Air Conditioning (HVAC) system. This code specifically points to an issue with the driver’s side (left) temperature blend door or air distribution […]

What Does Code B1286 Mean? DTC B1286 signifies that the vehicle’s Body Control Module (BCM) or Heating, Ventilation, and Air Conditioning (HVAC) Control Module has detected an electrical fault within the circuit for the Left Air Intake Servo Motor Potentiometer, specifically indicating a short to battery voltage. This servo motor is typically responsible for controlling […]

What Does Code B1287 Mean? DTC B1287 indicates a “Servo Motor Potentiometer Airintake Left Circuit Short To Ground.” This code specifically points to an electrical fault within the feedback circuit of a servo motor responsible for controlling an air intake or blend door on the left side of the vehicle’s heating, ventilation, and air conditioning […]

What Does Code B1288 Mean? DTC B1288 indicates a detected electrical circuit failure within the servo motor potentiometer for the right-side air intake system. This code specifically points to an issue with the feedback mechanism (potentiometer) or the electrical circuit associated with the servo motor responsible for controlling the air intake flap, runner, or tumble […]

What Does Code B1289 Mean? DTC B1289 signifies an Open Circuit condition detected by the Powertrain Control Module (PCM) or Engine Control Module (ECM) within the feedback potentiometer circuit associated with the Right Intake Manifold Runner Control (IMRC) Servo Motor. This code is typically encountered on engines equipped with variable intake manifold systems, commonly V6 […]

What Does Code B1290 Mean? DTC B1290 indicates that the Powertrain Control Module (PCM) or Engine Control Module (ECM) has detected a short to battery voltage in the circuit for the right air intake servo motor’s position potentiometer. This servo motor is typically responsible for controlling a flap or valve within the engine’s air intake […]