EPS DTC Troubleshooting: 51-02, 51-03, 51-06, 51-07
DTC 51-02:
 Torque Sensor (VT3 Differential-amplification Function) (Regular diagnosis)
DTC 51-03:
 Torque Sensor (VT1, VT2 Rapid-change) (Regular diagnosis)
DTC 51-06:
 Torque Sensor (VT1, VT2 Average) (Regular diagnosis)
DTC 51-07:
 Torque Sensor (VT1, VT2 Initial Check) (Initila diagnosis)
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch OFF.
  1. Start the engine.
Does the EPS indicator come on?
YES -
Go to Step 4 .
NO -
Check for loose terminals or poor connections. If the connections are good, the system is OK at this time.■
  1. Verify the DTC.
Is DTC 51-02, 51-03, 51-06 or DTC 51-07 indicated?
YES -
Go to Step 5 .
NO -
Troubleshoot the indicated DTC. If there are no DTCs, the system is OK at this time.■
  1. Turn the ignition switch OFF.
  1. Disconnect the EPS control unit connector D (28P).
  1. Check for resistance between EPS control unit connector D (28P) terminals No. 9 and No. 10.
Is the resistance between 12−15 Ω (at normal)?
YES -
Go to Step 8 .
NO -
Go to Step 12 .