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Home >> Subaru >> 2020 >> Legacy Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.5L) (4 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U007B: Control Module Communication Bus "I" Off >> Diagnostic Method

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:  436ms

Malfunction indicator light illumination:  Does not illuminate even when malfunction occurs.