With Intelligent Key System

HORN FUNCTION

Description

Perform answer-back for each operation with horn.


Component Function Check


1. CHECK FUNCTION

1.Select "HORN" in "ACTIVE TEST" mode with CONSULT.
2.Check the horn (high/low) operation.





Is the operation normal?
YES- INSPECTION END.
NO- Go to .


Diagnosis Procedure

Regarding Wiring Diagram information, Intelligent Key System.

1. CHECK HORN FUNCTION

Check horn function with horn switch
Do the horns sound?
YES- GO TO 2
NO- Go to [1][2]Electrical Diagrams.

2. CHECK HORN RELAY POWER SUPPLY

1.Turn ignition switch ON.
2.Perform "ACTIVE TEST", "HORN" with CONSULT.





3.Using an oscilloscope or analog voltmeter, check voltage between horn relay harness connector and ground.





Is the inspection result normal?
YES- GO TO 4
NO- GO TO 3

3. CHECK HORN RELAY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect IPDM E/R and horn relay connector.





3.Check continuity between IPDM E/R harness connector and horn relay harness connector.





4.Check continuity between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- GO TO 4
NO- Repair or replace harness.

4. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
Is the inspection result normal?
YES- Replace IPDM E/R. Service and Repair.
NO- Repair or replace the malfunctioning part.