Toyota Yaris: Horn / Relay

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Vehicle Exterior / Horn / Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT HORN RELAY ASSEMBLY

(a) Check the resistance.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	Auxiliary battery voltage not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Auxiliary battery voltage applied between terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the horn relay assembly.

Horn System

Parts LocationPARTS LOCATION ILLUSTRATION *1 LOW PITCHED HORN ASSEMBLY *2 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - HORN RELAY - HORN FUSE ILLUSTRATION *1 HORN BUTTON ASSEMBLY *2 SPIRAL CABLE SUB-ASSEMBLY *3 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *4 POWER DISTRIBUTION BOX ASSEMBLY *5 DLC3 - - System DiagramSYSTEM DIAGRAM Problem Symptoms TablePROBLEM SYMPTOMS TABLE NOTICE: If the main body ECU (multiplex network body ECU) is replaced, refer to the Registration...

Lighting (ext)

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: System Diagram

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