{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"BAT","section_name":"Brakes, ABS & TRAC Systems","page":151,"pages_in_section":167,"title":"Brakes, ABS & TRAC Systems","section_header":"Brake System — Traction Control System (TRAC)","ocr_text":"BR–151\nBRAKE SYSTEM – TRACTION CONTROL SYSTEM (TRAC)\n\n3  Check for open and short in harness and connector between terminal IDL1\nof TRAC ECU and main throttle position sensor with TRAC ECU, ECM and\nmain throttle position sensor  connectors disconnected (See page IN–30).\n\nOK                          NG  Repair or replace harness or connector.\n\n4  Check for short in harness between terminal IDL1 of TRAC ECU and body\nground with only main throttle position sensor connector connected (See\npage IN–30).\n\nOK                          NG  Check and replace main throttle position\n                                sensor.\n\n5  Check for short in harness between terminal IDL1 of TRAC ECU and body\nground with only ECM connector connected (See page IN–30).\n\nOK                          NG  Check and replace ECM.\n\nCheck and replace TRAC ECU.\n\n6  Check voltage of terminal VTA1 of ECM (See page EG–554).\n\nNG                          OK  Check and replace ECM.\n\n7  Check for open and short in harness and connector between terminal\nVTA1 of ECM and main throttle position sensor (See page IN–30).\n\nOK                          NG  Repair or replace harness or connector.\n\n8  Check main throttle position sensor (See page EG–555).\n\nOK                          NG  Adjust or replace main throttle position sensor\n                                See page EG–292).\n\nCheck and replace 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