Check Using The Check Sheet Of Communication For Initializing

Network diagram

Fig 1: Communication Network Diagram
Courtesy of SUBARU OF AMERICA, INC.
Check sheet of communication for initializing

Fig 2: Initializing Communication Diagram
Courtesy of SUBARU OF AMERICA, INC.

Module installation check
1. Write "-" marks in the field for installation check if the vehicle to be inspected does not have relevant module.
2. Write "-" marks in all blank fields on the same row that the "-" mark has filled in.
  NOTE: Example of writing < Ref. to EXAMPLE OF WRITING FOR THE CHECK SHEET OF COMMUNICATION FOR INITIALIZING , COMMUNICATION FOR INITIALIZING IMPOSSIBLE, Subaru Select Monitor. >
Subaru Select Monitor communication initialization check
1. Write "◦" marks in the field for communication initialization if the module succeeded in the communication for initializing with Select Monitor.
  If the communication with all modules is not possible, go to 3).
2. Write "◦" marks in all blank fields on the same row that the "◦" mark has filled in.
3. When at least one field in a column of wiring location is filled with the "◦" mark, then the wiring for that location is normal. Write "◦" marks in all blank fields on the same column that the "◦" mark has filled in under the circled number.
4. Check the open circuit of the modules which have no "◦" mark in their columns of the wiring location in ascending order. (only for installed modules)
5. If the communication is not possible after checking all harnesses, check the module power supply line.
6. Replace the module if the power supply line is normal.
  NOTE:
  - Example of writing < Ref. to EXAMPLE OF WRITING FOR THE CHECK SHEET OF COMMUNICATION FOR INITIALIZING , COMMUNICATION FOR INITIALIZING IMPOSSIBLE, Subaru Select Monitor. >
  - Inspection using the communication for initializing of Subaru Select Monitor cannot be used to diagnose the wiring location marked with "-". Example of DTC data not received < Ref. to EXAMPLE OF DTC DATA NOT RECEIVED , LIST, List of Diagnostic Trouble Code (DTC). > and DTC matrix < Ref. to DTC MATRIX , LIST, List of Diagnostic Trouble Code (DTC). > should be used to identify the faulty portion.
Subaru Select Monitor communication initialization check (impossible to communicate with all modules)
NOTE:
If at least one module becomes possible to communicate, return to 2).
1. Check for the short circuit to ground. < Ref. to GROUND SHORT INSPECTION , INSPECTION, CAN Communication Circuit Check. > If it is normal, go to the next.
2. Check for the short circuit to battery. < Ref. to BATTERY SHORT INSPECTION , INSPECTION, CAN Communication Circuit Check. > If it is normal, go to the next.
3. Perform the inspection for the resistance of 52 Ω or less (short between wires). < Ref. to 52 Ω OR LESS , INSPECTION, CAN Communication Circuit Check. > If it is normal, go to the next.
4. Check for the open circuit of network diagram No. 12 (data link connector).