Archives: DTC Codes

What Does Code C1742 Mean? Diagnostic Trouble Code C1742 indicates a malfunction within the Rear Sounder Circuit. This is a chassis diagnostic code (C-code), meaning it pertains to vehicle systems outside of the powertrain, typically handled by modules such as the Parking Aid Module (PAM), Body Control Module (BCM), or a dedicated warning system module. […]

What Does Code C1743 Mean? Diagnostic Trouble Code C1743 indicates a fault within the Rear Sounder Circuit, specifically a short circuit to Vbatt (battery voltage). This code is typically reported by a Body Control Module (BCM), Park Assist Module (PAM), or another auxiliary control unit responsible for audible alerts in the rear of the vehicle, […]

What Does Code C1744 Mean? Diagnostic Trouble Code C1744 indicates a detected malfunction within the electrical circuit of the Front Sounder. In most modern automotive applications, the “Front Sounder” typically refers to the dedicated audible alarm component of the vehicle’s Anti-Theft Security System (ATSS) or, less commonly, a warning speaker for a front parking assist […]

What Does Code C1745 Mean? DTC C1745 indicates a detected electrical anomaly within the circuit for the Front Sounder, specifically signaling a Short to Vbatt (Battery Voltage). This diagnostic trouble code is typically generated by a Body Control Module (BCM), Security Control Module (SCM), or an integrated vehicle network module responsible for managing the vehicle’s […]

What Does Code C1748 Mean? DTC C1748 indicates a fault within a specific “Switch Input Circuit” where the control module detects a continuous “Short to Ground.” As a chassis (C-prefix) code, C1748 points to an issue within a vehicle’s non-powertrain systems, such as the Anti-lock Braking System (ABS), Traction Control System (TCS), Electronic Stability Control […]

What Does Code C1749 Mean? DTC C1749 signifies a detected fault within the Trailer Input Circuit, indicating that the vehicle’s control module responsible for trailer detection is receiving an implausible or out-of-specification signal from the circuit designed to determine if a trailer is connected. Depending on the vehicle manufacturer and specific towing package configuration, this […]

What Does Code C1750 Mean? DTC C1750 indicates an “Accelerator Position Sensor Out of Range” condition. This code signifies that the Powertrain Control Module (PCM), or in some systems, the Engine Control Module (ECM), has detected a voltage signal from the Accelerator Pedal Position (APP) sensor that falls outside its predetermined minimum or maximum operational […]

What Does Code C1751 Mean? Diagnostic Trouble Code (DTC) C1751 indicates a detected electrical short circuit to battery voltage (Vbatt) on the output signal circuit of Vehicle Speed Sensor (VSS) #1. The Powertrain Control Module (PCM), or in some vehicle architectures, the Transmission Control Module (TCM) or Antilock Brake System (ABS) module, continuously monitors the […]

What Does Code C1752 Mean? DTC C1752 indicates a detected electrical anomaly within the output circuit of Vehicle Speed Sensor #1 (VSS #1), specifically a “Short to Ground.” Vehicle Speed Sensor #1 is typically the primary sensor responsible for generating a signal proportional to the vehicle’s speed. This signal is crucial for various control modules, […]

What Does Code C1753 Mean? DTC C1753, “Hydraulic Clutch Actuator Valve Signal Fault,” indicates that the vehicle’s Powertrain Control Module (PCM) or Transmission Control Module (TCM) has detected an anomaly in the electrical signal circuit for one of the hydraulic clutch actuator valves. This code is typically found in vehicles equipped with automated manual transmissions […]