C1591 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1591 – Actuator Neutral Position Calibration Undone


C1591 Possible Symptoms


Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)


C1591 Possible Causes


Actuator Neutral Position Calibration


C1591 Description


If the Steering Control ECU or steering actuator is replaced, or if the tie-rod ends are adjusted, Variable Gear Ratio Steering (VGRS) system calibration is required. If the Steering Control ECU detects that steering angle adjustment is incomplete, it will store the Diagnostic Trouble Code (DTC) C1591.