Sedan Without Intelligent Key

HORN





Description
Horn (high/low) is located inside of front bumper and operates when theft warning system is in alarm phase.




Component Function Check
1.CHECK FUNCTION
1. Select HORN in "ACTIVE TEST" mode with CONSULT-III.
2. Check the horn (high/low) operation.





Is the operation normal?
YES - Inspection End.
NO - Sedan Without Intelligent Key.




Diagnosis Procedure
Regarding Wiring Diagram information, Vehicle Security System Sedan Without Intelligent Key.
1.CHECK HORN FUNCTION
Check horn function with horn switch
Do the horns sound?
YES - GO TO 2
NO - Sedan.
2.CHECK HORN RELAY POWER SUPPLY
1. Turn ignition switch ON.
2. Perform "ACTIVE TEST" ("HORN") with CONSULT-Ill.





3. Using an analog voltmeter or an oscilloscope, check voltage between IPDM E/R connector E17 terminal 44 and ground.





Is the inspection result normal?
YES - Repair or replace harness between IPDM E/R and horn relay.
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.