Code Definition

C1956 — Steering Angle Sensor Circuit Failure

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

About C1956

C1956 is a manufacturer-specific chassis diagnostic trouble code. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1956 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.

C1956 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 steering angle sensor reports steering wheel position and rate of turn to the stability control module, which uses it with yaw rate, lateral acceleration, and wheel speed to judge the driver intended path. Unlike a specific open circuit code, DTC C1956 is a general steering angle sensor circuit failure, set when the module detects an electrical fault such as a short, an implausible or out of range signal, a loss of sensor communication, or an internal sensor fault. When this code is set the stability and traction control functions are usually disabled and the warning lamps illuminate, beca...

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