EPS DTC Troubleshooting: 51-01
  1. On the sensor side, check for resistance between torque sensor terminals No. 1 and No. 2.
Is the resistance between 12−15 Ω (at normal)?
YES -
Repair open or short between the PNK and BLU/RED wires in the torque sensor circuit between torque sensor and EPS control unit.■
NO -
Faulty torque sensor (short or open in the internal circuit), replace the steering gearbox. ■
  1. Disconnect the torque sensor 3P connector from the steering gearbox.