Honda Civic manuals

Subaru Legacy BN/BS (2015-2019) Service Manual: Inspection

Subaru Legacy BN/BS (2015-2019) Service Manual / Infotainment system (diagnostics) / Subaru select monitor / Inspection

1. COMMUNICATION FOR INITIALIZING IMPOSSIBLE

When communication with the navigation unit is impossible

DETECTING CONDITION:

• Defective harness connector

• Power supply circuit malfunction

• Infotainment system module malfunction

• Defective CAN communication circuit

• Defective Subaru Select Monitor

TROUBLE SYMPTOM:

Communication is impossible between the infotainment system module and Subaru Select Monitor.

WIRING DIAGRAM:

NOTE:

For the coupling connector, refer to “WIRING SYSTEM”.

• Audio system Audio System > WIRING DIAGRAM

• Navigation system Navigation System > WIRING DIAGRAM

STEPCHECKYESNO

1.CHECK OTHER COMMUNICATION.

Communicate with the system other than the infotainment system using the Subaru Select Monitor.

Is the communication to other control module possible-

Subaru Select Monitor > INSPECTION

Perform the “Communication for Initializing Impossible” of LAN system.

2.CHECK LAN SYSTEM.

Inspect LAN system. Basic Diagnostic Procedure > PROCEDURE

Is there any fault-

Perform the inspection according to the diagnosis for LAN system.

Subaru Select Monitor > INSPECTION

3.CHECK FUSE.

Check the fuse of the infotainment system. Relay and Fuse > LOCATION

Is it normal-

Subaru Select Monitor > INSPECTION

Replace the fuse. If the replaced fuse blows out easily, repair the ground short circuit of the harness between the battery and audio (7-inch display) connector, or between the navigation unit connector.

4.CHECK HARNESS.

1) Turn off the audio (7-inch display) or navigation unit.

2) Disconnect the audio (7-inch display) connector or navigation unit connector.

3) Turn the ignition switch to ON.

4) Using the tester, measure the voltage between audio (7-inch display) connector or navigation unit connector and chassis ground.

Connector & terminal

(i85) No. 4 (+) — Chassis ground (−): (without power amplifier)

(i35) No. 4 (+) — Chassis ground (−): (with power amplifier)

(i87) No. 1 (+) — Chassis ground (−):

Is the voltage 10 — 13 V-

Subaru Select Monitor > INSPECTION

Repair the open circuit of harness between audio (7-inch display) connector or navigation unit connector and fuse.

5.CHECK INFOTAINMENT SYSTEM MODULE.

1) Turn the ignition switch to OFF.

2) Connect the audio (7-inch display) connector or navigation unit connector.

3) Perform the communication with the infotainment system.

Is communication possible-

It is possible that temporary poor communication occurs.

Replace the audio (7-inch display) or navigation unit. Audio Navigation Body

Operation
• For detailed operation procedures, refer to “Application help”.• When the infotainment cannot communicate with Subaru Select Monitor, perform “COMMUNICATION FOR INITIAL ...

Instrumentation driver info
...

Other materials:

Operation
1. BRAKE MAINTENANCE MODECAUTION:• DTCs may be stored after starting the brake maintenance mode. When the brake maintenance mode is complete, clear the DTCs.• When the brake maintenance mode is completed, the electronic parking brake automatically operates. Check if any other works are n ...

© 2017-2025 Copyright www.sulegacy.com