Diagnostic Procedure

DTC B1093 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 3P and steering lock unit terminal G?	Yes	Perform the resetting procedure for the steering lock unit. (See STEERING LOCK UNIT ID CODE REGISTRATION ) Go to the next step.
1		No	Repair the wiring harness between the steering lock unit and keyless control module. Go to 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 ) (See STEERING LOCK UNIT ID CODE REGISTRATION ) Go to the next step.
2		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 ) (See ADVANCED KEY ID CODE REGISTRATION ) (See STEERING LOCK UNIT ID CODE REGISTRATION ) (See KEYLESS CONTROL MODULE CONFIGURATION ) (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM] )
3		No	DTC troubleshooting completed.