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Home >> Subaru >> 2018 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Control System (Diagnostics) (4 Of 4) (STI)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0073: Control Module Communication Bus Off >> Diagnostic Method

Diagnostic Method

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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:  Illuminates as soon as a malfunction occurs.