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
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.