{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"ATGE","section_name":"A340 Automatic Trans (GE)","page":85,"pages_in_section":98,"title":"Pattern Select Switch Circuit","section_header":"AT340E (2JZ–GE) Automatic Transmission – Troubleshooting","ocr_text":"Pattern Select Switch Circuit\n\nCIRCUIT DESCRIPTION\n\nThe ECM memory contains the shift programs for the NORMAL and MANUAL patterns, 2 position, and L position and the lock–up patterns. Following the programs corresponding to the signals from the pattern select switch, the park/neutral position switch and other various sensors the ECM switches the solenoid valves ON and OFF, thereby controlling the transmission gear change and the lock–up clutch operation.\n\nWIRING DIAGRAM\n\nCombination Meter\n\n12    W-L    38    25  M1\n                  II1  W-L  E10\n\nECM\n\nB+\n\nPattern Select\nSwitch\nW-B    3    MANU    4    12    18\n                         IJ2  G-Y  E10  M\n              NORM\nG-Y\n\nIE\n\nINSPECTION PROCEDURE\n\n1    Check A/T fluid temp. sensor.  (See page AT1–64).\n\nOK                        NG    Replace A/T fluid temp. sensor.\n\nGo to  2  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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}