DTC Troubleshooting: 93-01
EPS Control Unit DTC 93-01:
 A Communication Defect with LKAS Control Unit
NOTE: Information marked with an asterisk ( *1 ) applies to LHD model, an asterisk ( *2 ) applies to RHD model.
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0), then turn it to ON (II).
  1. Watch the LKAS indicator.
Does the LKAS indicator come on?
YES -
Go to Step 4 .
NO -
Intermittent failure, the system is OK at this time.■
  1. Check for DTC with the HDS.
Is DTC 93-01 indicated?
YES -
Go to Step 5 .
NO -
Troubleshoot the indicated DTC(s).■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the LKAS control unit 26P connector.
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between LKAS control unit 26P connector No. 8, No. 21 terminals and body ground individually.
Is there battery voltage?
YES -
Repair short to power in the wire between EPS control unit and LKAS control unit.■
NO -
Go to Step 9 .
  1. Turn the ignition switch to LOCK (0).