Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
4Original wording in English
HYUNDAI
This bulletin describes the procedure to update the MDPS (Motor Driven Power Steering) ECU for loss of steering assist when the engine is started. DTCs C125901, “Steering Angle Sensor Fail” and C111201, “Sensor Supply Voltage Error” are set when this occurs.
HYUNDAI
This bulletin describes the procedure to update the MDPS (Motor Driven Power Steering) ECU for loss of steering assist when the engine is started. DTCs C125901, “Steering Angle Sensor Fail” and C111201, “Sensor Supply Voltage Error” are set when this occurs.
KIA
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: MDPS LOGIC UPDATE FOR DTC C125901 & C111201 (SA456) - This bulletin provides the procedure to improve the logic of the Electronic Power Steering (EPS) software on some 2020MY Rio vehicles produced September 28, 2020 through November 21, 2020, which may exhibit reduced steering assist a…
HYUNDAI
HYUNDAI: EPS (ELECTRONIC POWER STEERING) SOFTWARE UPDATE OF CERTAIN VEHICLES. VEHICLES ILLUMINATE MALFUNCTION INDICATOR LAMPS RESULTING FROM DTC RELATED TO EPS SYSTEM C1259 AND FROM DTC RELATED TO ESC SYSTEM C1260. *PE
Check vehicle applicability
5A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Speed Wheel RF Comparison Failure
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.