Communication For Initializing Impossible

NOTE: Confirm that the LAN system is working properly before the diagnosis.
Subaru Select Monitor communication line is open or shorted.

DETECTING CONDITION:

Defective harness
Power supply circuit malfunction
Defective Keyless Access Control Module
Defective CAN communication circuit
Defective Subaru Select Monitor

TROUBLE SYMPTOM:

Not communicable with Subaru Select Monitor.

WIRING DIAGRAM:

Push button start system <Ref. to WIRING DIAGRAM , Push Button Start System.>
CAN communication system <Ref. to WIRING DIAGRAM , CAN Communication System.>

Engine type: FA

Fig 1: Keyless Access Control Module - Wiring Diagram (Engine Type FA)
Courtesy of SUBARU OF AMERICA, INC.
Engine type: EJ

Fig 2: Keyless Access Control Module - Wiring Diagram (Engine Type EJ)
Courtesy of SUBARU OF AMERICA, INC.

Step	Check	Yes	No
1 CHECK OTHER COMMUNICATION. Communicate with the system other than the keyless access system using the Subaru Select Monitor.	Is the communication to other control module possible?	Go to step 2 .	Perform the "Communication for Initializing Impossible" of LAN system. <Ref. to COMMUNICATION FOR INITIALIZING IMPOSSIBLE , Subaru Select Monitor.>
2 CHECK DTC. Read the DTC of the LAN system using the Subaru Select Monitor. <Ref. to OPERATION , Read Diagnostic Trouble Code (DTC).>	Is DTC displayed?	Perform the diagnosis of the displayed DTCs for LAN system.	Go to step 3 .
3 CHECK Keyless Access Control Module. Turn the ignition switch to OFF. Disconnect the Keyless Access Control Module connector. Connect the disconnected connectors. Perform communication with the keyless access system using the Subaru Select Monitor.	Is communication possible?	It is possible that temporary poor communication occurs.	Replace the Keyless Access Control Module. <Ref. to Keyless Access Control Module .>

CAUTION: For replacement procedure of Keyless Access Control Module, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.