DTC Troubleshooting: 21-01, 21-02
  1. Check for continuity between EPS control unit connector D (28P) terminal No. 15 and ECM/PCM connector A (44P) terminal No. 37 *1 or ECM/PCM connector A (49P) terminal No. 4 *2 .
    *1: R20A3 engine model
    *2: K24Z3 engine model
Is there continuity?
YES -
Replace the EPS control unit. ■
NO -
Repair open in the wire between the EPS control unit and the ECM/PCM.■

R20A3 engine model
K24Z3 engine model