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Home >> Toyota >> 2025 >> GR86 Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Lighting System (Ext) - Diagnostic Codes & Symptom Tests >> Lighting System >> DTC U0074: Control Module Communication Bus "BODY-CAN" Off; DTC U0101: Lost Communication with TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0402: Invalid Data Received From TCM; DTC U0416: Invalid Data Received From Vehicle Dynamics Control Module; DTC U1140: Lost Communication With Body Control Module BODY-CAN; DTC U1422: Invalid Data Received From Body Control Module BODY-CAN [11/2021 - ] >> Description
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DTC U0074: Control Module Communication Bus "BODY-CAN" Off; DTC U0101: Lost Communication with TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0402: Invalid Data Received From TCM; DTC U0416: Invalid Data Received From Vehicle Dynamics Control Module; DTC U1140: Lost Communication With Body Control Module BODY-CAN; DTC U1422: Invalid Data Received From Body Control Module BODY-CAN [11/2021 - ]: Description

DTC No. Detection Item DTC Detection Condition
U0074 Control Module Communication Bus "BODY-CAN" Off Detected when CAN line abnormality is detected.
U0101 Lost Communication with TCM Detected when CAN data from transmission control ECU assembly does not arrive.
U0122 Lost Communication With Vehicle Dynamics Control Module Detected when CAN data from brake actuator assembly (vehicle speed signal) does not arrive.
U0402 Invalid Data Received From TCM Detected when data from transmission control ECU assembly is abnormal.
U0416 Invalid Data Received From Vehicle Dynamics Control Module Detected when data from brake actuator assembly (vehicle speed signal) is abnormal.
U1140 Lost Communication With Body Control Module BODY-CAN Detected when CAN data from main body ECU (multiplex network body ECU) (headlight ON signal) does not arrive.
U1422 Invalid Data Received From Body Control Module BODY-CAN Detected when CAN data from main body ECU (multiplex network body ECU) (headlight ON signal) is abnormal.