Archives: DTC Codes

What Does Code C1111 Mean? DTC C1111 indicates an Anti-lock Braking System (ABS) Power Relay Coil Open Circuit. This code is set by the Electronic Brake Control Module (EBCM), also often referred to as the ABS module or Hydraulic Control Unit (HCU), when it detects an abnormally high resistance or a complete open circuit within […]

What Does Code C1112 Mean? Diagnostic Trouble Code (DTC) C1112 indicates an electrical fault within the Anti-lock Braking System (ABS) module’s power relay circuit. Specifically, it signifies that the Anti-lock Brake System (ABS) control module has detected a short circuit to ground within the coil winding of the ABS power relay. This means that when […]

What Does Code C1113 Mean? Diagnostic Trouble Code C1113 signifies a detected “ABS Power Relay Coil Short Circuit To Battery” within the vehicle’s Anti-lock Braking System (ABS). The ABS control module, often referred to as the Electronic Brake Control Module (EBCM) or integrated within the Powertrain Control Module (PCM) depending on the vehicle architecture, is […]

What Does Code C1114 Mean? The diagnostic trouble code C1114 signifies an ABS Power Relay Output Short Circuit To Ground. This code indicates that the Anti-lock Braking System (ABS) control module, often referred to as the Electronic Brake Control Module (EBCM), has detected an electrical fault within the primary power supply circuit for the ABS […]

What Does Code C1115 Mean? DTC C1115 signifies an “ABS Power Relay Output Short Circuit To Battery.” This diagnostic trouble code is registered when the Anti-lock Braking System (ABS) control module (also known as the Electronic Brake Control Module or EBCM) detects an abnormal voltage condition on the output circuit of its main power relay. […]

What Does Code C1116 Mean? The diagnostic trouble code C1116 signifies a malfunction within the vehicle’s starter motor circuit. This is a manufacturer-specific code, commonly observed in Ford, Lincoln, and Mercury vehicles, indicating that the Powertrain Control Module (PCM) or Engine Control Module (ECM) has detected an abnormal condition related to the operation or feedback […]

What Does Code C1117 Mean? DTC C1117 signifies an “RPM Input Circuit Failure,” indicating that a specific control module, typically the Anti-lock Brake System (ABS) module, Traction Control System (TCS) module, or another chassis-related module, has detected an issue with the electrical circuit providing engine RPM (Revolutions Per Minute) data. This is a chassis-specific code, […]

What Does Code C1123 Mean? Diagnostic Trouble Code C1123 indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a short circuit to battery voltage on the Vehicle Speed Sensor (VSS) input circuit. The VSS is a crucial component that provides vehicle speed information to various control modules, typically generating an […]

What Does Code C1124 Mean? Diagnostic Trouble Code (DTC) C1124, characterized by an “Input Shaft Speed Signal Missing/Faulted,” indicates that the Powertrain Control Module (PCM) or Transmission Control Module (TCM) is not receiving a reliable or plausible signal from the Input Shaft Speed (ISS) sensor, also often referred to as the Turbine Speed Sensor (TSS). […]

What Does Code C1125 Mean? DTC C1125 signifies an input circuit failure for the Brake Fluid Level Sensor. This code is typically set by the Anti-lock Braking System (ABS) control module, or in some integrated systems, directly by the Powertrain Control Module (PCM) or Body Control Module (BCM), which then communicates the fault to other […]