RM38T0EC _59 Vehicle Exterior _113861 HORN _0504970 HORN SYSTEM T

HORN HORN SYSTEM PROBLEM SYMPTOMS TABLE

NOTICE:: Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.*; *: w/ Smart Entry and Start System

HINT:: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Horn System
Symptom	Suspected Area	Link
Horn does not sound	HORN fuse	-
	HORN relay assembly	202201,999999,_59,_113861,_0510348,RM100000002092T,
	Horn button assembly	202201,202307,_58,_115188,_0510623,RM1000000020A9F,202307,999999,_58,_115188,_0510623,RM100000002BZW5,
	Spiral cable sub-assembly	202201,202307,_58,_115188,_0510624,RM1000000020A9I,202307,999999,_58,_115188,_0510624,RM100000002BZWC,
	Power distribution box assembly	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
	Harness or connector	-
Horn sounds all the time	HORN relay assembly	202201,999999,_59,_113861,_0510348,RM100000002092T,
	Horn button assembly	202201,202307,_58,_115188,_0510623,RM1000000020A9F,202307,999999,_58,_115188,_0510623,RM100000002BZW5,
	Spiral cable sub-assembly	202201,202307,_58,_115188,_0510624,RM1000000020A9I,202307,999999,_58,_115188,_0510624,RM100000002BZWC,
	Power distribution box assembly	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
	Harness or connector	-