Archives: DTC Codes

What Does Code C1227 Mean? DTC C1227 indicates a diagnostic fault within the Anti-lock Braking System (ABS) reporting a Left Rear (LR) Wheel Speed Sensor Input Short Circuit To Battery. This means the ABS control module (sometimes integrated within the Powertrain Control Module or ECM, but typically a dedicated ABS/Vehicle Stability Control module) has detected […]

What Does Code C1228 Mean? DTC C1228 signifies an electronic fault detected within the Anti-lock Braking System (ABS), specifically indicating a Speed Wheel Sensor LR Input Short Circuit To Ground. This means the Electronic Brake Control Module (EBCM), or an integrated control module responsible for ABS/TCS functionality, has detected that the signal circuit from the […]

What Does Code C1229 Mean? The diagnostic trouble code C1229, “Speed Wheel Sensor Rear Center Coherency Fault,” indicates that the Anti-lock Braking System (ABS) control module has detected an implausible or inconsistent signal from the rear center wheel speed sensor. Unlike a simple circuit fault (e.g., open or short), a coherency fault signifies that the […]

What Does Code C1230 Mean? DTC C1230 indicates an electrical malfunction within the input circuit of the rear center speed wheel sensor. This code is typically set by the Anti-lock Brake System (ABS) module, Traction Control System (TCS) module, or Vehicle Stability Control (VSC) module, rather than the Engine Control Module (ECM/PCM). The “rear center” […]

What Does Code C1231 Mean? DTC C1231 indicates an open circuit detected in the rear center wheel speed sensor. This code is typically set by the Anti-lock Braking System (ABS) control module, which constantly monitors the electrical continuity and signal integrity of all wheel speed sensors. An “open circuit” signifies a break in the electrical […]

What Does Code C1232 Mean? The diagnostic trouble code C1232 indicates that the Anti-lock Braking System (ABS) control module, or in some integrated systems, the Powertrain Control Module (PCM), has detected an electrical fault within the circuit of the rear center wheel speed sensor. Specifically, “Short Circuit To Battery” means the sensor’s signal wire is […]

What Does Code C1233 Mean? DTC C1233 indicates a specific malfunction within the Anti-lock Brake System (ABS) regarding the Left Front (LF) Wheel Speed Sensor. The code signifies that the ABS Control Module, which often communicates with the Powertrain Control Module (PCM) or Engine Control Module (ECM) via the Controller Area Network (CAN) bus, has […]

What Does Code C1234 Mean? The diagnostic trouble code (DTC) C1234, indicating “Speed Wheel RF Input Signal Missing,” signifies that the Anti-lock Brake System (ABS) control module, or the integrated Vehicle Stability Control (VSC)/Traction Control System (TCS) module, has detected an implausible or absent signal from the Right Front (RF) wheel speed sensor. The ABS […]

What Does Code C1235 Mean? DTC C1235 indicates a detected anomaly with the input signal from the Right Rear (RR) wheel speed sensor. This diagnostic trouble code is typically generated by the Anti-lock Brake System (ABS) control module, which is often integrated with the Vehicle Stability Control (VSC) or Traction Control System (TCS) module. The […]

What Does Code C1236 Mean? The diagnostic trouble code C1236 signifies “Speed Wheel LR Input Signal Missing” and is set by the vehicle’s Anti-lock Brake System (ABS) control module, often integrated within the Electronic Brake Control Module (EBCM) or Hydraulic Control Unit (HCU). This code indicates that the ABS module is not receiving a valid, […]