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1A-21 Engine General Information and Diagnosis: Terminal Arrangement of ECM Coupler (Viewed from Harness Side) Connector: C37 1. Accelerator pedal position (APP) sensor assembly 22. Stop lamp switch 44. Radiator cooling fan motor No.1 2. Shield wire 23. Stop lamp 45. Radiator cooling fan motor No.2 3. CMP sensor 24. DLC 46. A/C compressor relay (if equipped with A/C) 4. CKP sensor 25. To BCM and ABS hydraulic unit / control module assembly 47. A/C compressor (if equipped with A/C) 5. MAF and IAT sensor 26. Barometric pressure sensor 48. “CPRSR” fuse 6. CO adjust resistor (if equipped) 27. Throttle actuator control relay 49. Ignition coil assembly (for No.1 and No.4 spark plugs) 7. MAP sensor 28. “THR MOT” fuse 50. Ignition coil assembly (for No.2 and No.3 spark plugs) 8. ECT sensor 29. Electric throttle body assembly 51. “IG COIL” fuse 9. A/C refrigerant pressure sensor (if equipped with A/C) 30. Throttle actuator 52. Main relay 10. Generator 31. Throttle position sensor 53. “IG2 SIG” fuse 11. “O2 HTR” fuse 32. Fuel injector No.1 54. “DOME” fuse 12. HO2S heater relay 33. Fuel injector No.2 55. “FI” fuse 13. HO2S-2 34. Fuel injector No.3 56. Ignition switch 14. A/F sensor 35. Fuel injector No.4 57. “IGN” fuse 15. Knock sensor 36. EVAP canister purge valve 58. “STR MOT” fuse 16. Power steering pump pressure switch 37. EGR valve 59. “ST SIG” fuse 17. Immobilizer coil antenna (if equipped) 38. Oil control valve (Camshaft position control) 60. Starting motor control relay 18. ABS hydraulic unit / control module assembly 39. Fuel pump relay 61. Starting motor 19. BCM 40. Fuel pump 62. Diagnosis connector (if equipped) 20. Combination meter 41. Radiator cooling fan relay No.1 63. Battery 21. Main fuel level sensor 42. Radiator cooling fan relay No.2 64. Engine ground 21-1. Sub fuel level sensor 43. Radiator cooling fan relay No.3 65. Body ground E23 C37 3 4 18 19 5 6 7 10 11 17 20 47 46 49 50 51 21 22 52 16 25 9 24 14 55 57 54 53 59 60 58 2 26 27 28 15 56 48 32 31 34 35 36 37 40 42 39 38 44 45 43 41 33 1 12 13 23 8 3 4 18 19 5 6 7 10 11 17 20 47 46 49 50 51 21 22 52 16 25 9 24 14 55 57 54 53 59 60 58 2 26 27 28 15 56 48 32 31 34 35 36 37 40 42 39 38 44 45 43 41 33 1 12 13 23 8 I4RS0A110008-01 Terminal Wire color Circuit Terminal Wire color Circuit 1 PNK Fuel injector No.1 31 BLK/YEL Ground for A/F sensor heater 2 PNK/BLK Fuel injector No.2 32 PNK/BLU Heater output of A/F sensor 3 YEL/GRN EGR valve (stepper motor coil 33 GRY/RED Intake manifold tuning vacuum 4 YEL EGR valve (stepper motor coil 34 RED/BLU Ground for A/F sensor 5 YEL/BLK EGR valve (stepper motor coil 35 RED/YEL A/F sensor adjusting resistor 6 YEL/RED EGR valve (stepper motor coil 36 PNK Crankshaft position (CKP) 7 BLU/ORN Power steering pump pressure 37 BLK A/F sensor signal (–) 8 BRN/RED (for M16 engine) Generator field coil monitor 38 WHT A/F sensor signal (+) BRN/BLK (for J20 engine) |