Code Definition

C1290 — Torque Sensor Main Signal

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

About C1290

C1290 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.

When C1290 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.

C1290 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 Electronic Power Steering (EPS) control module continuously monitors the main output signal from the steering torque sensor to determine driver steering input direction and magnitude. DTC C1290 is set when the EPS module detects that the torque sensor main signal is outside the specified voltage range, implausible compared to the sub signal, or not matching expected values relative to steering angle and motor operation. This condition indicates an abnormal or unreliable torque sensor main signal, preventing accurate steering assist control. When the code is active the EPS module typically ...

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