Hi, can you test these systems in the same path: Body,ABS/VSC/TRAC and Tire Pressure Monitor?

 Hi, thanks for your reply. We did SRS functions on lot of vehicles with same protocols during field test, but we didn't meet the same issue like yours. We doubt that there might be some faults in the ECU itself, especially when it can communicate with Body,ABS/VSC/TRAC and so on but not SRS. Have you tried to test SRS on other 2006 toyota 4Runner vehicles? If it can test SRS on other 4Runner vehicles, we can tell that confirm the problem is on the SRS of this vehicle itself.