EPS-LKAS DTC Troubleshooting: 93-01
EPS Control Unit DTC 93-01: Check Data Communication to LKAS Unit/Multipurpose Camera Unit
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the how to troubleshooting information.

DTC Description
DTC
Freeze Frame
93-01 Check Data Communication to LKAS Unit/Multipurpose Camera Unit
    

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Turn the vehicle to the OFF (LOCK) mode, then back to the ON mode.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
93-01 Check Data Communication to LKAS Unit/Multipurpose Camera Unit
    

Is DTC 93-01 indicated?

     
YES
     
     
     
Go to the step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time.?
2.
Open wire check (F-CAN_H, F-CAN_L lines):

Open wire check (F-CAN_H, F-CAN_L lines)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connectors.
EPS control unit connector A (11P)
Multipurpose camera unit 20P connector

?3.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
EPS control unit connector A (11P): disconnected
 
Multipurpose camera unit 20P connector
Test point 1
EPS control unit connector A (11P) No. 10
Test point 2
Multipurpose camera unit 20P connector No. 2


Is there continuity?

     
YES
     
     
     
The F-CAN_H and F-CAN_L wires are OK. Check for poor connections or loose terminals at the EPS control unit and the multipurpose camera unit, replace the multipurpose camera unit.?
     
NO
     
     
     
Repair an open in the wire between the EPS control unit and the multipurpose camera unit.?