DTC Troubleshooting: 51-02, 51-03, 51-06, 51-07
  1. Check for continuity between EPS control unit connector D (28P) terminal No. 9 and body ground.
Is there continuity?
YES -
Go to Step 11 .
NO -
Check for loose terminals in the EPS control unit connectors, and repair if necessary. If no poor connections are found, replace the EPS control unit. ■
  1. Disconnect the torque sensor 3P connector from the steering gearbox.