DTC U0073 Control Module Communication Bus OFF; DTC U0105 Lost Communication with ECM; DTC U0121 Lost Communication with Anti-lock Brake System (ABS) Control Module; DTC U0122 Lost Communication with Vehicle Dynamics Control Module; DTC U0130 Lost Communication with VGRS: Wiring Diagram

Fig 1: Wiring Diagram - Control Module Communication

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1. CHECK DTC 
   1. Using the intelligent tester, check for DTCs.

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