Code Definition

C1917 — Steering EVO Out-of-Range Fault

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

About C1917

C1917 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 C1917 is stored, the module has detected a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour.

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.

C1917 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 Variable Orifice (EVO) system provides speed proportional power steering assist, giving lighter effort for parking and firmer, more stable steering at highway speed. The control module commands an EVO actuator, a solenoid operated valve in the power steering circuit, and varies its current based on vehicle speed to control hydraulic flow and steering effort. DTC C1917 is set when the module detects the EVO actuator control current or feedback is outside the expected operating range, meaning the actuator is not responding as commanded. This can result from a wiring fault, a stick...

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