DTC 4

DTC 4: Upper FET Stuck ON
1. Disconnect EPS control unit connector C (2P).





2. Check for continuity between EPS control unit connector C (2P) terminal No. 1 and body ground.
Is there continuity?
YES - Check for loose EPS control unit connectors. If necessary, substitute a known-good EPS control unit and recheck.
NO - Repair open in the wire between the EPS control unit and the body ground (G351).