{"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":152,"pages_in_section":167,"title":"Dtc 47 48 Sub–Throttle Position Sensor Circuit Circuit Description","section_header":"Brake System — Traction Control System (TRAC)","ocr_text":"BR–152\nBRAKE SYSTEM – TRACTION CONTROL SYSTEM (TRAC)\n\nDTC 47 48 Sub–Throttle Position Sensor Circuit\nCIRCUIT DESCRIPTION\nThis sensor detects the opening angle of the sub–throttle valve and sends the appropriate signals to the ECU.\nIf a trouble signal is input, the ECU prohibits TRAC control.\n\nDTC No. | Diagnostic Trouble Code Detecting Condition | Trouble area\n\n47\nWhen any of the following (1) through (3) is detected:\n(1) Deviation of 5 steps or more to the closed side of the idle step during sub–throttle initial check.\n(2) Voltage at terminal IDL2 does not become 0 V even after sub–throttle is driven to fully closed position during sub–throttle initial check.\n(3) Voltage at terminal VTA2 of ECM is 1.5 V or more for at least 0.31 sec. while CTP switch is ON.\nSub–throttle position sensor\nOpen or short in IDL2 circuit\nECM\nTRAC ECU\n\n48\nEither of the following (1) or (2) continues for at least 0.26 sec.:\n(1) Input voltage of ECM terminal VTA2: 4.9 V or more\n(2) Input voltage of ECM terminal VTA2: 0.1 V or less.\nSub–throttle position sensor\nOpen or short in VTA2 circuit\nECM\n\nWIRING DIAGRAM\n\nSub-Throttle Position Sensor\n4  L-R\n3  Y-L\n1  BR-B\n2  GR-R\n\nECM\n41 E9 VCC1  ⊕ 5 V\n42 E9 VTA2\nEFI+ 27  B\nEFI- 26  W\n65 E9 E2  ⊕ 12 V\n63 E9 IDL2\nGR-R\n\nTRAC ECU\n3 T10 EFI+\n8 T10 EFI-\n⊕ 5 V\n7 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}