TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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TGTE/Troubleshooting 2JZ-GTE87 / 113
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ENGINE — 2JZ-GTE ENGINE TROUBLESHOOTING — MK4 Supra Troubleshooting 2JZ-GTE, page 87
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EG-573 ENGINE — 2JZ-GTE ENGINE TROUBLESHOOTING 2 Check throttle position sensor. P (1) Remove throttle body. (See page EG 291) (2) Apply vacuum to throttle opener. (See page EG-292) C Measure resistance between terminals 3 (IDL1) and 4 (E2) of throttle position sensor connector. OK Throttle Valve | Resistance Fully closed | Less than 0.5 kΩ Opened | 1 MΩ or higher 1 4 (E2) 3 (IDL1) P11452 OK NG Adjust or replace throttle position sensor. (See page EG-292) Check and repair harness or connector between en- gine control module and throttle position sensor. 3 Check voltage between terminal A/C of engine control module connector and body ground. SST ECM P (1) Connect SST (check harness "A"). (See page EG-510) SST 09990-01000 (2) Start the engine. C Measure voltage between terminal A/C of engine control module and body ground. A 34 OK A/C Switch | Voltage OFF | 7.5 – 14 V ON | 0 – 1.5 V A/C FI6893 OK NG Check A/C compressor circuit. (See page EG-62) Check and replace engine control module.