1995 TOYOTA SUPRA Service Repair Manual

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Page 417 of 2543

TOYOTA SUPRA 1995 Service Repair Manual TROUBLESHOOTING ± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT1±31

Page 418 of 2543

TOYOTA SUPRA 1995 Service Repair Manual HOW TO PROCEED WITH TROUBLESHOOTING Vehicle Brought to Workshop Customer Problem Analysis P. AT1±33 Check and Clear Diagnostic Trouble Codes (Precheck) P. AT1±33 ~AT1±35 Problem Symptom Confirmat

Page 419 of 2543

TOYOTA SUPRA 1995 Service Repair Manual CUSTOMER PROBLEM ANALYSIS ± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT1±33

Page 420 of 2543

TOYOTA SUPRA 1995 Service Repair Manual DIAGNOSIS SYSTEM The Electronically Controlled Transmission has built±in self± diagnostic functions. If a malfunction occurs in the system, the ECM stores the diagnostic trouble code in memory and

Page 421 of 2543

TOYOTA SUPRA 1995 Service Repair Manual The trouble code is indicated, as shown in the illustration at left (Diagnostic trouble code º42º is shown as an example). HINT: When 2 or more trouble codes are stored in memory, the lower±numbere

Page 422 of 2543

TOYOTA SUPRA 1995 Service Repair Manual CHECK TERMINAL TT OUTPUT VOLTAGE When a voltmeter is connected to the DLC2, the following items can be checked: 1. Throttle position sensor signal 2. Brake signal 3. Shift position signal 1. VOLTMETER

Page 423 of 2543

TOYOTA SUPRA 1995 Service Repair Manual PROBLEM SYMPTOM CONFIRMATION Taking into consideration the results of the customer problem analysis, try to reproduce the symptoms of the trouble. If the problem is that the transmission does not up±

Page 424 of 2543

TOYOTA SUPRA 1995 Service Repair Manual (d). Check kick±down operation. While running in the D position, 2nd, 3rd and O/D gears, check to see that the possible kick±down vehicle speed limits for 2 " 1, 3 " 2 and O/D " 3 kick±downs confor
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