DTC Troubleshooting: 91-02, 92-01, 92-02

EPS Control Unit DTC 91-02:
 EPS Control Unit (Problem with the Current Sensor Offset)
EPS Control Unit DTC 92-01:
 EPS Control Unit (Lower FET Stuck ON)
EPS Control Unit DTC 92-02:
 EPS Control Unit (Upper FET Stuck ON)
  1. Turn the ignition switch to LOCK (0).
  1. Start the engine with the LKAS activated, test-drive on a straight road at 72 km/h (45 mph) or more for 30 seconds or more.
  1. Watch the LKAS indicator.
Does the LKAS indicator come on?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time.■
Is DTC 91-02, 92-01, or 92-02 indicated?
YES -
Check for loose terminals in the EPS control unit connectors, and repair if necessary. If all connections are OK, replace the EPS control unit.
NO -
Troubleshoot the indicated DTC(s).■