LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2022 >> Ascent Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Diagnostics) (4 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0073: Control Module Communication Bus Off >> Diagnostic Method
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Method

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
CAN bus condition Bus off

Time needed for diagnosis:  436 ms

Malfunction indicator light illumination: Illuminates as soon as a malfunction occurs.