What Does C1740 Mean?
The right front center parking sensor circuit has a general electrical failure. The parking assist module cannot communicate with or receive valid signals from this sensor. The driver will notice the parking assist system displaying an error or providing incomplete coverage for the right front zone. The system may disable entirely or continue with degraded coverage from the remaining sensors.
Common Causes
30%
Failed right front center parking sensor — internal electronics failure
25%
Open circuit in the wiring between the parking module and sensor — broken wire or disconnected plug
25%
Corroded or water-damaged connector at the sensor preventing electrical contact
15%
Sensor physically damaged from minor impact, pressure washing, or debris strike
5%
Parking assist module port failure for this specific sensor channel
Diagnostic Steps
1
Visually inspect the right front center parking sensor in the bumper — look for physical damage, cracks, paint overspray covering the sensor face, or the sensor being pushed out of its mounting.
2
Disconnect the sensor connector and check for continuity on the signal and power wires back to the parking module — an open circuit indicates a broken wire in the harness.
3
Inspect the connector for corrosion, water intrusion, and pin condition. Clean contacts with electrical cleaner and apply dielectric grease before reconnecting.
4
Swap the sensor with an adjacent known-good sensor — if the fault follows the sensor, it is defective. If the fault stays at the same position, the wiring or module port is the issue.
5
Verify the sensor receives proper operating voltage (typically 8-12V) and ground at its connector with the ignition on and parking mode active.
Estimated Repair Cost
$40 - $300
Parts + labor, varies by vehicle and location
The right front center parking sensor circuit has a general electrical failure. The parking assist module cannot communicate with or receive valid signals from this sensor. The driver will notice the parking assist system displaying an error or providing incomplete coverage for the right front zone....
The most common cause of C1740 (Right Front Center Sensor Circuit Failure) is: Failed right front center parking sensor — internal electronics failure
Typical repair costs for C1740 range from $40 to $300, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The vehicle is fully safe to drive. Only the parking proximity detection for the right front zone is affected. Use mirrors, cameras (if equipped), and visual awareness when parking. This is a convenience feature failure with no impact on vehicle drivability.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1740 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Chassis
System
Parking Assist System
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
