{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"TGE","section_name":"Troubleshooting 2JZ-GE","page":38,"pages_in_section":105,"title":"Dtc 16 a T Control Signal Malfunction","section_header":"Engine — 2JZ-GE Engine Troubleshooting","ocr_text":"EG–418\nENGINE – 2JZ–GE ENGINE TROUBLESHOOTING\n\nDTC 16 A T Control Signal Malfunction\n\nCIRCUIT DESCRIPTION\n\nThe signal from the A/T CPU retards the ignition timing of the engine during A/T gear shifting, thus momentarily reducing torque output of the engine for smooth clutch operation inside the transmission and reduced shift shock.\n\nDTC No. | Diagnostic Trouble Code Detecting Condition | Trouble Area\n16 | Fault in communications between the engine CPU and A/T CPU in the ECM | • ECM\n\nIf the ECM detects the diagnostic trouble code \"16\" in memory, it prohibits the torque control of the A/T which performs smooth gear shifting.\n\nINSPECTION PROCEDURE\n\n1 Are there any otheer codes (besides Code 16) being output?\n\nNO YES Go to relevant diagnostic trouble code chart.\n\nRepair engine control 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