Horn Function

HORN FUNCTION





Description
Performs answer-back for each operation with horn.




Component Function Check
1.CHECK FUNCTION
1. Use CONSULT-III to perform Active Test ("HORN").
2. Touch "ON" to check that it works normally.
Is the operation normal?
YES - Horn function is OK.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK HORN SWITCH
Check horn function with horn switch
Do the horns sound?
YES - GO TO 2.
NO - [1][2]Electrical Diagrams.
2.CHECK HORN RELAY POWER SUPPLY
1. Turn ignition switch ON.
2. Perform "ACTIVE TEST" ("HORN") using CONSULT-Ill.
3. Check voltage between malfunctioning 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 connector and horn relay.
3. Check continuity between IPDM E/R harness connector and malfunctioning horn relay terminal connector.





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





Is the inspection result normal?
YES - Replace IPDM E/R. Removal And Installation.
NO - Repair or replace harness.
4.CHECK INTERMITTENT INCIDENT
Intermittent Incident Regular Grade.
Is the inspection result normal?
- INSPECTION END