Code Definition

C1718 — Left Front Centre Sensor Circuit Failure

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Ford

About C1718

C1718 is a manufacturer-specific chassis diagnostic trouble code recorded for Ford vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1718 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1718 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

DTC C1718 relates to the left front centre ultrasonic sensor circuit of the front parking aid system, one of the inner pair on a four sensor front bumper. The Parking Aid Module (PAM) supplies each sensor with power, ground, and a signal line, and checks every circuit for a valid response while the system operates during low speed manoeuvres. C1718 is set when the module detects an open circuit, a short, or no valid response from the left front centre sensor during the system self test or normal operation. When this code is set the front parking aid is disabled, and the driver may notice a war...

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