Engine Control Module: Locations

Components on PCM/ECM Harness
11. Powertrain Control Module (PCM)/Engine Control Module (ECM)
12. Data Link Connector (DLC)
13. Malfunction Indicator Lamp (MIL)
14. PCM/ECM/ABS Harness Ground
15. Fuse Panel (2)

PCM/ECM Controlled Devices
21. Fuel Injector (4)
22. Idle Air Control (IAC) Valve
23. Fuel Pump Relay
24. Engine Fan Relays
25. A/C Compressor Relay
26. Electronic Ignition System Ignition Coil
27. Evaporative Emission (EVAP) Canister Purge Solenoid
28. Variable Geometry Induction System (VGIS)
29. Exhaust Gas Recirculation (EGR) Valve

Information Sensors
31. Manifold Absolute Pressure (MAP) Sensor
32. Pre-Converter Oxygen (O2) Sensor
33. Throttle Position (TP) Sensor
34. Engine Coolant Temperature (ECT) Sensor
35. Intake Air Temperature (IAT) Sensor
36. Vehicle Speed Sensor (VSS)
(Manual Transaxle)
Vehicle Speed Sensor (VSS)
(Automatic Transaxle)
37. Park/Neutral (P/N) Position Switch
(Manual Transaxle)
P/N Position Switch (Automatic Transaxle)
38. Crankshaft Position (CKP) Sensor
39. Knock Sensor
40. Post-Converter Oxygen Sensor (HO2S)
41. Camshaft Position (CMP) Sensor
43. Oil Pressure Switch
45. G Sensor

Not PCM/ECM Connected
42. Evaporative Emission (EVAP) Canister (under vehicle, behind right rear wheel)
44. Air Cleaner