TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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TGTE/Troubleshooting 2JZ-GTE79 / 113
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CIRCUIT DESCRIPTION (Cont'd) — MK4 Supra Troubleshooting 2JZ-GTE, page 79
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ENGINE — 2JZ-GTE ENGINE TROUBLESHOOTING EG–565 CIRCUIT DESCRIPTION (Cont'd) Malfunction: Open in EGR Gas Temp. Sensor Circuit (Vehicle Speed) Detection 88 ~ 96 km/h (55 – 60 mph) ④ ② ③ Idling ① IG SW OFF 3 min. 4 min. (Time) FI6528 (1) Disconnect the EFI No.1 fuse (30A) for 10 sec. or more, with IG switch OFF. Initiate test mode (Connect terminal TE2 and E1 of data link connector 2 with IG switch OFF). (2) Start the engine and warm up. (3) Idle the engine for 3 min. (4) With the A/C ON and transmission in 5th position (A/T in 3rd speed) drive at 88 96 km/h (55 60 mph) for 4 min or less. HINT: If a malfunction exists, the malfunction indicator lamp will light up during step (4). NOTICE: If the conditions in this test are not strictly followed, detection of the malfunction will not be possible. WIRING DIAGRAM Engine Control Module B-R 2 B-R 1 2 P EA2 GR 8 VSV for EGR EA1 75 EGR B+ E9 ② ② E01 R/B No.2 5 1 EFI Main Relay B+ 3 2 ② ② GR 24 M-REL W– E10 B-Y ② R/B No.2 EFI No.1 W-B 1 2A EGR Gas Temp. Sensor 8 2 BR-Y 46 THG 5 V Battery 1 E9 W– BR-B 65 E2 E9 E1 FI6932