Archives: DTC Codes

What Does Code C1901 Mean? DTC C1901 signifies a malfunction within the electrical circuit of the Rear Right (RR) Shock Actuator within an electronically controlled suspension system. This code is typically set by the Suspension Control Module (SCM), Body Control Module (BCM), or sometimes the Powertrain Control Module (PCM) if it directly integrates suspension control. […]

What Does Code C1902 Mean? Code C1902 indicates a detected open circuit within the electrical system of the Rear Right (RR) Ride Control Shock Actuator. The vehicle’s Suspension Control Module (SCM), Ride Control Module (RCM), or an equivalent chassis control module (depending on the vehicle manufacturer and specific system architecture) is responsible for monitoring and […]

What Does Code C1903 Mean? DTC C1903 signifies a detected electrical malfunction within the ride control system, specifically indicating a “Short To Battery” condition in the circuit designated for the Rear Right (RR) shock absorber actuator. The ride control system, often known as adaptive suspension, continuously variable damping, or magnetic ride control, utilizes electronically controlled […]

What Does Code C1904 Mean? DTC C1904 indicates a detected electrical fault within the Right Rear (RR) Shock Actuator Circuit, specifically a “Short To Ground.” In modern vehicles equipped with active or adaptive ride control systems, the Suspension Control Module (SCM), which may be integrated within or communicate closely with the Powertrain Control Module (PCM) […]

What Does Code C1905 Mean? DTC C1905 signifies a detected electrical malfunction within the Left Rear (LR) Shock Actuator Circuit, part of the vehicle’s adaptive or electronic ride control system. This code is typically set by the Suspension Control Module (SCM), Ride Control Module (RCM), or sometimes an integrated Body Control Module (BCM) depending on […]

What Does Code C1906 Mean? DTC C1906 signifies an detected open circuit within the electrical control pathway for the Left Rear (LR) Ride Control Shock Actuator. This code is typically set by the vehicle’s Suspension Control Module (SCM) or Ride Control Module (RCM), which then communicates the fault to the Powertrain Control Module (PCM) or […]

What Does Code C1907 Mean? DTC C1907 signifies a “Ride Control Left Rear (LR) Shock Actuator Circuit Short To Battery.” This diagnostic trouble code is specific to vehicles equipped with an electronically controlled suspension system, often referred to as active damping, adaptive suspension, or ride control. The code indicates that the Suspension Control Module (SCM), […]

What Does Code C1908 Mean? DTC C1908 indicates a detected electrical fault within the control circuit for the Left Rear (LR) Shock Actuator, specifically a “Short To Ground” condition. In advanced ride control or active suspension systems, each shock absorber is equipped with an electronic actuator that precisely modulates the damping force. This actuator typically […]

What Does Code C1909 Mean? DTC C1909 signifies a “Ride Control RF Shock Actuator Circuit Failure,” indicating an electrical fault within the control circuit of the right front (RF) shock absorber’s electronically adjustable damping actuator. This code is typically detected and logged by the vehicle’s Suspension Control Module (SCM) or Ride Control Module (RCM), which […]

What Does Code C1910 Mean? DTC C1910 signifies an “Ride Control RF Shock Actuator Circuit Open” condition. This code indicates that the Suspension Control Module (SCM), or the relevant control module responsible for the adaptive or active ride control system (which may be integrated into the Body Control Module (BCM) or Powertrain Control Module (PCM) […]