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#1: 03-10-2005, 04:19 AM
JDM ECU wiring diagram
 
 SC GT
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http://tara555.hp.infoseek.co.jp/ECU%20diagram.html

Translated:
1. RY: Clutch switch 2. WB: Front O2 (A/F) sensor heater signal 2 3. WB: Front O2 (A/F) sensor heater signal 1 4.? 5. ? 6. R: Ground (front O2 (A/F) sensor heater 2) 7. R: Ground (front O2 (A/F) sensor heater 1) 8.? 9. ? 10 ? 11. ? 12. ? 13 ? 14. RG: Purge control solenoid valve 15.? 16 ? 17. OrW: Engine warning light 18 V: Intake AVCS solenoid (RH) signal (+) 19. LB: Intake AVCS ソレノイ h (LH) signal (+) 20. L: Exhaust AVCS solenoid (RH) signal (+) 21 R: Exhaust AVCS solenoid (LH) signal (+) 22. BR: Alternator - 23. P: Engine rpm output 24.? 25. SB: Front O2 (A/F) sensor seal 26. W: Front O2 (A/F) sensor signal (? ) 27.? 28. Sb: Intake AVCS solenoid (RH) signal (? ) 29. P: Intake AVCS solenoid (LH) signal (? ) 30. LOr: Exhaust AVCS solenoid (RH) signal (? ) 31. RW: Exhaust AVCS solenoid (LH) signal (? ) 32. BY: Supercharging pressure control solenoid valve 33. B: Front O2 (A/F) sensor signal (+) 34. BL: ? 1. BW: Ground (power source supply) 2. RW: Rear O2 sensor heater signal 3.? 4. BW: Ground (power source supply) 5. YL: Control unit power source supply 6. YL: Control unit power source supply 7.? 8. GW: Intake camshaft position sensor (LH) 9. GR: Intake camshaft position sensor (RH) 10 W: Crankshaft position sensor signal (+) 11.? 12. B: Ground (ignition system) 13? 14. ? 15. WL: Ignition control No.416. GW: Ignition control No.317. YG: Ignition control No.218. RY: Ignition control No.119. W: Backup power source supply 20. R: Exhaust camshaft position sensor (LH) signal (+) 21 B: Exhaust camshaft position sensor (RH) signal (+) 22. B: Crankshaft position sensor signal (? ) 23.? 24. BR: Radiator fan relay 2 control 25. RL: Radiator fan relay 1 control 26. ? 27. Lg: Fuel pump control unit signal 228. G: Exhaust camshaft position sensor (LH) signal (? ) 29. W: Exhaust camshaft position sensor (RH) signal (? ) 30. SB: Exhaust camshaft position sensor seal 31, SB: Crankshaft position sensor seal 32. BL: Starter relay 33. LOr: A/C relay control 34.? 35. RL: Electronic control throttle motor relay B136 B137 1. ? 2. ? 3. PG: Fuel injector No.4 4. PB: Fuel injector No.3 5. PL: Fuel injector No.2 6. P: Fuel injector No.1 7. W: Cruise control main switch 8. BrR: Brake switch 2 9. Y: Brake switch 110.? 11. YL: Cruise control command switch 12.? 13 YL: Intake air temperature sensor signal 14. BrW: Engine coolant temperature sensor signal 15. GB: Accelerator position sensor power source supply 16 LY: Sensor power source supply 17. Y: Accelerator position sensor main 18 W: Electronic control throttle main 19. BL: ? 20. ? 21? 22. YW: Manifold pressure sensor signal 23. LR: Air flow sensor signal 24.? 25. L: Knock sensor signal 26.? 27. ? 28. R: Accelerator position sensor sub 29. Or: Electronic control throttle sub 30. YB: Air conditioner pressure switch 31. BG: Air flow sensor ground 32. SB: Air flow sensor seal 33. SB: Knock sensor seal 34. L: Accelerator position sensor ground 35. YG: Ground (sensor) 1. BL: Ground (control system) 2. BL: Accelerator position sensor seal 3. LR: Ground 4. WB: Electronic control throttle motor (? ) 5. GY: Electronic control throttle motor (+) 6. LR: Electronic control throttle power source 7. BP: Ground (injector) 8. LW: Starter switch 9. GL: Neutral position switch 10 PB: Power-steering oil pressure indicator lamp switch 11.? 12. ? 13 VY: Blower - fan switch 14. GR: Ignition switch 15. P: Static test mode connector 16 Lg: Main relay 17. P: A/C switch 18 R: CAN communication 19. WL: イモビライザーシステム 20. VR: SSR communication line 21? 22. ? 23. ? 24. PG: Clear memory switch 25. W: Rear O2 sensor signal 26. L: CAN communication 27. BR: イモビライザーシステム 28. LgR: Fuel pump control unit signal 129. V: Selection monitor connector 30.? 31. SB: Rear O2 sensor seal
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