Code Definition

C1520 — Clutch Switch

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

About C1520

C1520 is a manufacturer-specific chassis diagnostic trouble code recorded for Hyundai vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

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.

C1520 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

The control module monitors the clutch pedal switch input to determine clutch pedal position for functions such as engine starting, cruise control cancellation, and stability or torque control coordination on manual transmission vehicles. DTC C1520 is set when the module detects an implausible clutch switch signal, an incorrect voltage state relative to vehicle operating conditions, or no change in switch status when clutch pedal movement is expected. This indicates a malfunction in the clutch switch input circuit. As a result, functions that depend on the clutch signal such as cruise control ...

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