{"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":68,"pages_in_section":105,"title":"Dtc 43 Starter Signal Circuit","section_header":"Engine — 2JZ-GE Engine Troubleshooting","ocr_text":"EG–448\n\nENGINE – 2JZ–GE ENGINE TROUBLESHOOTING\n\nDTC 43 Starter Signal Circuit\n\nCIRCUIT DESCRIPTION\nWhen the engine is being cranked, the intake air flow is slow, so fuel vaporization is poor. A rich mixture is therefore necessary in order to achieve good startability. While the engine is being cranked, the battery positive voltage is applied to terminal STA of the ECM. The starter signal is mainly used to increase the fuel injection volume for the starting injection control and after–start injection control.\n\nDTC No. | Diagnostic Trouble Code Detecting Condition | Trouble Area\n43 | No starter signal to ECM | • Open or short in starter signal circuit\n• Open or short in ignition switch or starter relay circuit\n• ECM\n\nWIRING DIAGRAM\n\nEngine Control Module\n\n7    B    B-W\n6    ST    4\n1J       1K    B    B    13    B-W\nIgnition Switch                         IJ2\nJ/B No. 1              ω (for M/T)    (for A/T)\n                        Clutch          6\n4 (1J)                 Start           Park/\n                        Switch          Neutral\nJ/B No.1              B-W    2         Position\n4 (1B)                                 5 Switch\n\nB\nB              3              B\n2 IJ1          EA1    B    ω    B    B    77    STA\nW                                              E9\n2              EA3    B\n                              S3  1\n2    2    2                              Starter\nAM1\n5    1\nStarter Relay\n2\n3    2\nR/B No.2\n2\nALT\nMAIN\n1 (2A)    2\n\nB\nL-O    6    L-O    10    L-O    25    4\nIB2         IF2         T13        T7    W-B\nBattery                    Theft Deterrent\n                           and Door Lock\n                           Control 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