RELAY - HORN (Toyota TY005904217571)

A damaged horn relay can prevent the horn from sounding when the circuit is activated. This aftermarket replacement part references Toyota as the OE maker and cross-references part number TY005904217571. The relay functions as an electrically operated switch that controls current flow to the horn circuit. A common failure mode is an open coil, which stops the relay from closing and leaves the horn silent. During a no-horn complaint, the relay's click test can confirm whether the coil is receiving power. The item ships at approximately 0.054 pounds. Verify the serial number or application, then call (562) 693-7748.

Part number variants: TY005904217571, ty005904217571