Archives: DTC Codes

What Does Code C1795 Mean? DTC C1795 indicates an Air Suspension RR Air Spring/Shock Solenoid Output Circuit Failure. This diagnostic trouble code specifically refers to a detected electrical malfunction within the control circuit for the right rear (RR) air spring or shock absorber solenoid. In modern vehicles equipped with active or self-leveling air suspension systems, […]

What Does Code C1796 Mean? The diagnostic trouble code C1796 indicates an “Air Suspension RR Air Spring/Shock Solenoid Output Circuit Open”. This code signifies that the vehicle’s Air Suspension Control Module (ASCM), or an integrated Body Control Module (BCM) depending on the manufacturer’s architecture, has detected an open circuit within the electrical pathway controlling the […]

What Does Code C1797 Mean? The diagnostic trouble code C1797 signifies an electrical fault within the Air Suspension System, specifically indicating a “Right Rear (RR) Air Spring/Shock Solenoid Output Circuit Short To Battery”. This code is generated by the Air Suspension Control Module (ASCM), which is responsible for managing the vehicle’s ride height and damping […]

What Does Code C1798 Mean? DTC C1798 signifies an electrical fault within the air suspension system, specifically indicating an output circuit shorted to ground for the Right Rear (RR) air spring/shock solenoid. The Air Suspension Control Module (ASCM), or an integrated Body Control Module (BCM) acting as the primary suspension controller, monitors the electrical integrity […]

What Does Code C1800 Mean? DTC C1800 indicates a detected electrical circuit fault within the air suspension reservoir solenoid system. This code specifically points to an issue with the electrical circuit controlling the solenoid valve responsible for managing airflow to or from the air suspension reservoir. The Air Suspension Control Module (ASCM), or sometimes an […]

What Does Code C1805 Mean? DTC C1805 signifies a detected incompatibility or mismatch between the Powertrain Control Module (PCM), also commonly referred to as the Engine Control Module (ECM), and one or more modules within the Anti-lock Braking System (ABS) and/or Traction Control (TC) system. This code is typically set by the ABS/TC module itself […]

What Does Code C1813 Mean? DTC C1813 signifies an issue within the vehicle’s air suspension system, specifically pertaining to the rear-left (LR) air spring’s venting function. The code indicates that the Air Suspension Control Module (ASM), or an integrated Body Control Module (BCM), commanded the rear-left air spring to vent air to lower its pressure […]

What Does Code C1814 Mean? DTC C1814 signifies an “Air Suspension RR Vent Request Exceeded Max Timing” condition. This diagnostic trouble code is set by the vehicle’s Air Suspension Control Module (ASCM) or Ride Level Control Module (RLCM) when it detects that the process of venting air from the Rear Right (RR) air spring takes […]

What Does Code C1818 Mean? DTC C1818, “Air Suspension LR Air Compress Request Exceeded Max Timing,” indicates that the dedicated Air Suspension Module (ASM) or Ride Control Module (RCM) has commanded the air compressor to inflate the left rear (LR) air spring, but the system has failed to achieve the desired ride height or pressure […]

What Does Code C1819 Mean? DTC C1819 signifies that the Air Suspension Control Module (ASCM), or Suspension Control Module (SCM), has detected an anomaly where the rear-right (RR) air suspension compressor was requested to operate for an extended duration, exceeding its maximum permissible operational timing for a single inflation cycle, without achieving its commanded target […]