TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.073
TGE/Troubleshooting 2JZ-GE74 / 105
p.075
CIRCUIT DESCRIPTION (Cont'd) — MK4 Supra Troubleshooting 2JZ-GE, page 74
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EG–454 ENGINE – 2JZ–GE ENGINE TROUBLESHOOTING CIRCUIT DESCRIPTION (Cont'd) Malfunction: Open in EGR Gas Temp. Sensor Circuit (Vehicle Speed) 88 ~ 96 km/h (55 ~ 60 mph) Detection ④ Idling IG SW OFF ① ② ③ 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 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 3 >>EA3 B-R 2 1 P GR 8 >>EA1 VSV for EGR 75 EGR E9 E01 R/B No.2 EFI Main Relay B+ 24 GR E10 M-REL R/B No.2 EFI No.1 B-Y W-B 2A EGR Gas Temp. Sensor 5 V 1 BR-Y 46 E9 THG 2 Battery BR-B 66 E9 E2 E1 FI6949