15/05/2026
To find the IGCT (Ignition Control) relay in a Toyota Estima Hybrid, you will need to locate the main engine bay relay and fuse block. The IGCT relay is directly related to your vehicle's hybrid control system and ignition power.Location Steps:Open the Hood: Pop the hood of your Estima Hybrid.Locate the Main Fuse Box: Find the main Engine Room Relay Block/Junction Box. It is typically positioned on the right-hand side (passenger side in RHD markets) near the front fender apron or auxiliary battery.Remove the Cover: Press the locking tabs on the side of the fuse box cover and lift it off.Identify the IGCT Relay: Look at the underside of the fuse box lid or check your owner’s manual to find the specific diagram.The IGCT relay is located within Unit C or Unit D of the Engine Room Junction Block.It is typically accompanied by nearby hybrid system fuses (such as IGCT No.1, IGCT No.2, and IGCT No.3).Caution: Because the IGCT relay manages high-voltage hybrid electronics, always ensure your vehicle is fully turned off, the hybrid system is disabled, and you are wearing proper insulated safety gear if you are planning to test or replace it.For tips on how to properly test a relay and check for continuity:
