DTC B1093 [ADVANCED KEYLESS SYSTEM]

id0902e2802800

DTC B1093

Unprogrammed steering lock unit.
DETECTION CONDITION
•  Unprogrammed steering lock unit.
POSSIBLE CAUSE
•  Steering lock unit malfunction
•  Open or short circuit in wiring harness between keyless control module and steering lock unit
•  Keyless control module malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT COMMUNICATION CIRCUIT FOR CONTINUITY
•  Disconnect keyless control module connector and steering lock unit connector.
•  Is there continuity between keyless control module terminal 3H and steering lock unit terminal E?
Yes
Perform the resetting procedure for the steering lock unit.
(See STEERING LOCK UNIT ID CODE REGISTRATION [ADVANCED KEYLESS SYSTEM].)
Go to the next step
No
Repair the wiring harness between the steering lock unit and keyless control module.
Go to the next step
2
INSPECT STEERING LOCK UNIT
•  Turn the ignition switch to the ON position.
•  Is the DTC displayed?
―  M-MDS: B1093
Yes
Replace the steering lock unit and perform the resetting procedure for the steering lock unit..
(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
Go to the next step
No
DTC troubleshooting completed.
3
INSPECT KEYLESS CONTROL MODULE
•  Turn the ignition switch to the ON position.
•  Is the DTC displayed?
―  M-MDS: B1093
Yes
Replace the keyless control module and perform the resetting procedure for the advanced keyless system when replacing the keyless control module.
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS SYSTEM].)
No
DTC troubleshooting completed.