General Information: Notes
WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
A large number of ECU controlled systems are used in the 4RUNNER. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involve inspecting the ECU controlled system's circuits one by one.
An adequate understanding of the system and a basic knowledge of electricity is enough to perform effective troubleshooting, accurate diagnoses and necessary repairs. Detailed information and troubleshooting procedures on major ECU controlled systems in this vehicle are outlined below:
TROUBLESHOOTING REFERENCE
| System | Example |
|---|---|
| 1. SFI System (1GR-FE) | SFI SYSTEM (1GR-FE) |
| 2. SFI System (2UZ-FE) | SFI SYSTEM (2UZ-FE) |
| 3. Tire Pressure Warning System | TIRE PRESSURE WARNING SYSTEM |
| 4. Rear Air Suspension System | REAR AIR SUSPENSION SYSTEM |
| 5. ABS with EBD & BA & TRAC & VSC System | ABS WITH EBD & BD & TRAC |
| 6. Electronically Controlled Automatic Transmission [ECT] ((A750E/A750F)(1GR-FE)) | ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION [ECT] ((A750E/A750F)(1GR-FE)) |
| 7. Electronically Controlled Automatic Transmission [ECT] ((A750E/A750F)(2UZ-FE)) | ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION [ECT] ((A750E/A750F)(2UZ-FE)) |
| 8. Air Conditioning System | AIR CONDITIONING SYSTEM |
| 9. Supplemental Restraint System | SUPPLEMENTAL RESTRAINT SYSTEM |
| 10. Lighting System | LIGHTING SYSTEM |
| 11. Wiper & Washer System | WIPER & WASHER SYSTEM |
| 12. Audio System | AUDIO SYSTEM - DIAGNOSTICS |
| 13. Navigation System | NAVIGATION SYSTEM - DIAGNOSTICS |
| 14. Back Monitor System | BACK MONITOR SYSTEM - DIAGNOSTICS |
| 15. Combination Meter | COMBINATION METER - DIAGNOSTICS |
| 16. Power Window Control System | POWER WINDOW CONTROL SYSTEM - DIAGNOSTICS |
| 17. Back Door Power Window Control System | BACK DOOR POWER WINDOW - DIAGNOSTICS |
| 18. Power Door Lock Control System | POWER DOOR LOCK - DIAGNOSTICS |
| 19. Back Door Closer System | BACK DOOR CLOSER SYSTEM - DIAGNOSTICS |
| 20. Wireless Door Lock Control System | WIRELESS DOOR LOCK - DIAGNOSTICS |
| 21. Key Reminder Warning System | - |
| 22. Engine Immobilizer System | ENGINE IMMOBILIZER SYSTEM - DIAGNOSTICS |
| 23. Theft Deterrent System | THEFT DETERRENT SYSTEM - DIAGNOSTICS |
| 24. Multiplex Communication System | MULTIPLEX COMMUNICATION SYSTEM - DIAGNOSTICS |
| 25. Can Communication System | CAN COMMUNICATION SYSTEM |
| 26. Cruise Control System | CRUISE CONTROL SYSTEM |