Section 39 (LAN Communication System (Diagnostics)): General Description: Inspection

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Before performing diagnostics, check the following item which might affect body integrated unit malfunctions.

Measure the battery voltage and check electrolyte.
Standard voltage: 12 V or more

Specific gravity: 1.260 or more
Check the fuse condition.
Make sure that ampere of the fuse is setting value, and it is not blown out.

(Be sure to check the back-up fuse also.)
Check the connecting condition of harness and harness connector.
Confirm settings of body integrated unit are corresponded to vehicle equipment.< Refer to REGISTRATION BODY INTEGRATED UNIT . >
Make sure that a setting that does not match the vehicle equipment, is not set in the User Customizing of the body integrated unit.< Refer to USER CUSTOMIZING . >
Confirm "Factory or Market setting" of body integrated unit registrations is "Market".
Confirm key illumination does not blink with ignition switch turned to ON.