The problem you now face is what to do about the check engine light. What is Real Value in Auto Diagnostic Services? Still, no matter how the car feels, an illuminated check engine light is telling you that the ECM has detected a problem somewhere in the system. Let’s say your check engine light comes on, but you don’t really notice it because the car seems to run well enough. The ECM monitors the engine, constantly tuning engine output to driver demand, such as passing power or cruising fuel economy. The ECM is also critical for keeping vehicle emissions as low as possible. While the engine in your vehicle is quite similar to that made a century ago, the engine control module (ECM) makes it possible to extract power more efficiently. The check engine light isn’t quite so self-explanatory.

If you have a brake pedal pulsation, it usually means you have warped brake rotors. For example, if you have a squeaky serpentine belt, the solution is often quite obvious – replace the serpentine belt. You should not attempt to apply any software updates without fully understanding the information contained in the Technical Service Bulletin.Chances are good that you’ve dealt with the check engine light, but unlike other problems, the check engine light can seem like a mystery.

In many cases, software updates are only part of the full repair process. Technical Service BulletinsĪny software update will have an associated Technical Service Bulletin describing the problem or application to be fixed. For vehicles originally sold in other markets contact the local Toyota representative. This service is only available for vehicles officially marketed and sold by Toyota Motor Europe NVSA. Add the relevant Bulletin ID and the system will present software updates relevant to the VIN, model & Model code. To make this process more simple, the download function requires the vehicle identification number (VIN) to be entered first. There are often additional vehicle parameters that need to be considered before selecting the correct update. All updates are vehicle, model and model code specific. only issues software updates (Calibration or CAL files) for engine management and other electronic control units (ECU) only when there are specific issues or problems to be resolved. ECU Software updates ECU Software updates

Ecm- ecu diagnostic software number