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Home >> Subaru >> 2020 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (P-HEV Hybrid Powertrain Control System (Diagnostics) (2 Of 2)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0129-87: Lost Communication With Brake System Control Module Missing Message >> Notes

DTC U0129-87: Lost Communication With Brake System Control Module Missing Message: Notes

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Outline of diagnosis: 

Malfunction of CAN communication (V bus) with VDC control module and hydraulic control unit (VDC Control Module & H/U) (CAN system malfunction)

(1 trip detection logic)

Trouble symptom: 

Normal driving