DTC Troubleshooting: B1183
  1. Check for continuity between the EPS control unit connector C (28P) No. 1 and No. 15 terminals and body ground individually.
Are there continuity?
YES -
Substitute a known-good EPS control unit, and recheck. If the indication goes away, replace the original EPS control unit. If the DTC is still present, replace the gauge control module (tach). ■
NO -
Repair an open in the wire.■