{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"ATTE","section_name":"A340 Automatic Trans (GTE)","page":95,"pages_in_section":118,"title":"Dtc 89 TRAC ECU Circuit","section_header":"A340E (2JZ—GTE) Automatic Transmission — Troubleshooting","ocr_text":"AT2–95\n\nA340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING\n\nDTC 89 TRAC ECU Circuit\n\n— CIRCUIT DESCRIPTION —\n\nWhen the transmission is in the shift up or stall condition, the TRAC ECU sends a sub–throttle valve close signal to the sub–throttle actuator.\n\nDTC No. | Diagnostic Code Detection Condition | Trouble Area\n\n89 | All conditions below are detected 5 secs. or more.\n(a) No.1 vehicle speed sensor: 9 km/h (5.6 mph) or more\n(b) Mirror check of TRAC ECU input signal is abnormal.\n(c) TRAC ECU input signal does not inform to ECM.\n(d) TRAC ECU input signal order is abnormal. | Harness or connector between TRAC ECU and ECM\nTRAC ECU\n\n— WIRING DIAGRAM —\n\nTRAC 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}