Check Using "Check Sheet Of Communication For Initializing"

WARNING: This page is about a different car, the 2014 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.

Network diagram

Fig 1: CAN Communication Network Diagram

Courtesy of SUBARU OF AMERICA, INC.

Wiring location	Type	Part	CANH	CANL
No. 1	Main line	ECM vicinity	D43-9-A33-19	D43-20-A33-18
No. 2	Main line	J/C1-J/C2	D43-1-A17-7	D43-12-A17-18
No. 3	Main line	VDCCM vicinity	A17-6-A5-26	A17-17-A5-14
No. 4	Subline	A/C CM vicinity	D43-10-D19-13	D43-21-D19-12
No. 5	Subline	Airbag CM vicinity	D43-8-D27-13	D43-19-D27-22
No. 6	Subline	Steering angle sensor vicinity	D43-6-D56-3	D43-17-D56-2
No. 7	Subline	Data link connector vicinity	D43-5-D10-6	D43-16-D10-14
No. 8	Subline	Keyless access CM	D43-4-D41-14	D43-15-D41-15
No. 9	Subline	Body integrated unit	D43-3-D5-14	D43-14-D5-13
No. 10	Subline	Combination meter vicinity	D43-2-D7-6	D43-13-D7-7
No. 11	Subline	Power steering CM vicinity	A17-8-A15-1	A17-19-A15-7
No. 12	Subline	TCM vicinity	A17-5-A18-29	A17-16-A18-28

Check sheet of communication for initializing

Fig 2: CAN Communication Initialization Check Sheet

Courtesy of SUBARU OF AMERICA, INC.

Procedure

Module installation check
1. Put "-" mark in the box under the installation check column if the vehicle to be inspected does not have the relevant module.
2. Put "-" marks in all blank boxes in the same row that the "-" mark has been placed.
  NOTE: Refer to the sample list.
SSM communication initialization check
1. Put "O" mark in the box under the communication initialization column if the module succeeded in the communication initialization with Select Monitor. If the communication with all of the modules subject to CAN diagnostic fails, go to (c).
2. Put "O" marks in all blank boxes in the same row that the "O" mark has been placed.
3. If a wiring location column has one or more boxes with "O" mark, the wiring for that location is normal. Put "O" mark in the box directly under the column with circled number. Put "O" marks in the blank boxes under the column.
4. Perform open circuit check for the wiring locations without "O" mark in ascending order. (only for installed modules)
5. If the communication remains disabled after checking all harnesses, inspect the module power supply line.
6. If the power supply line is normal, perform the basic diagnosis procedure for the corresponding system.
7. If the communication fails even after the basic diagnosis procedure, replace the module.
  NOTE:
  - Refer to the sample list.
  - For the wiring locations marked with "-", they cannot be inspected using the communication for initialization via Select Monitor.
  Identify the faulty part by using example of missing DTC detection.
SSM communication initialization check (impossible to communicate with any module)
NOTE: Perform inspection procedure for the trouble mode indicating that all CAN modules do not communicate. If the communication with any of the modules has been recovered, go to "2. SSM communication initialization check".
1. Check for the short circuit to ground. (Refer to CHECK FOR SHORT TO GROUND )
  If it is normal, go to the next.
2. Check for the short circuit to battery. (Refer to CHECK FOR SHORT TO BATTERY )
  If it is normal, go to the next.
3. Perform the inspection procedure for the resistance of Less than 57 Ω(line-to-line short). (Refer to LESS THAN 57 Ω )
  If it is normal, go to the next.
4. Check for the open circuit of network diagram No. 7 (data link connector).
Examples: Check sheet of communication for initializing

No. 1 is open

Fig 3: Communication Initialization Check Sheet (No. 1 Is Open)
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No. 2 is open

Fig 4: Communication Initialization Check Sheet (No. 2 Is Open)
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No. 3 is open

Fig 5: Communication Initialization Check Sheet (No. 3 Is Open)
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No. 4 is open

Fig 6: Communication Initialization Check Sheet (No. 4 Is Open)
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No. 5 is open

Fig 7: Communication Initialization Check Sheet (No. 5 Is Open)
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No. 6 is open

NOTE: This defect can be detected based on the missing data detection condition for each module (refer to example of missing DTC detection)

Fig 8: Communication Initialization Check Sheet (No. 6 Is Open)
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No. 7 is open

NOTE: Perform the procedure described in "3. SSM communication initialization check (impossible to communicate with any module)".

Fig 9: Communication Initialization Check Sheet (No. 7 Is Open)
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No. 8 is open

Fig 10: Communication Initialization Check Sheet (No. 8 Is Open)
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No. 9 is open

Fig 11: Communication Initialization Check Sheet (No. 9 Is Open)
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No. 10 is open

Fig 12: Communication Initialization Check Sheet (No. 10 Is Open)
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No. 11 is open

Fig 13: Communication Initialization Check Sheet (No. 11 Is Open)
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No. 12 is open

Fig 14: Communication Initialization Check Sheet (No. 12 Is Open)
Courtesy of SUBARU OF AMERICA, INC.