Horn Function

HORN FUNCTION

Component Function Check


1. CHECK FUNCTION 1

1.Disconnect anti theft horn relay.
2.Perform ANTI-THEFT HORN in ACTIVE TEST mode of THEFT ALM of BCM using CONSULT.
3.Check the horn operation.





Is the operation normal?
YES- GO TO 2.
NO- Go to "Diagnosis Procedure" .

2. CHECK FUNCTION 2

1.Reconnect anti-theft horn relay.
2.Disconnect horn relay.
3.Perform ANTI-THEFT HORN in ACTIVE TEST mode of THEFT ALM of BCM using CONSULT.
4.Check the horn operation.





Is the operation normal?
YES- Inspection End.
NO- Go to "Diagnosis Procedure" .


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Vehicle Security System.

1. INSPECTION START

Perform inspection in accordance with procedure that confirms malfunction.
Which procedure confirms malfunction?
Component Function Check 1-GO TO 2.
Component Function Check 2-GO TO 4.

2. CHECK HORN FUNCTION

Check that horns function properly using horn switch.
Do horns sound?
YES- GO TO 3.
NO- Check horn circuit. Refer to "Component Function Check" .

3. CHECK HORN CONTROL CIRCUIT

1.Disconnect horn relay.
2.Disconnect IPDM E/R 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- Replace IPDM E/R. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness.

4. CHECK ANTI-THEFT HORN RELAY POWER SUPPLY

1.Disconnect anti-theft horn relay.
2.Check voltage between anti-theft horn relay harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO-1- Check 10 A fuse [No. 62 located in the fuse and fusible link box].
NO-2- Check harness for open or short between anti-theft horn relay and fuse.

5. CHECK ANTI THEFT HORN CONTROL CIRCUIT

1.Disconnect IPDM E/R connector.
2.Check continuity between IPDM E/R harness connector and anti-theft horn relay harness connector.





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





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace harness.

6. CHECK ANTI-THEFT HORN CIRCUIT

1.Check continuity between anti-theft horn relay harness connector and anti-theft horn harness connector.





2.Check continuity between anti-theft horn relay harness connector and ground.





Is the inspection result normal?
YES- GO TO 7.
NO- Repair or replace harness.

7. CHECK ANTI-THEFT HORN RELAY

Refer to "Component Inspection" .
Is the inspection result normal?
YES- Replace anti-theft horn.
NO- Replace anti-theft horn relay.


Component Inspection


1. CHECK ANTI-THEFT HORN RELAY

1.Turn ignition switch OFF.
2.Disconnect anti-theft horn relay.
3.Check voltage between anti theft horn relay terminal and ground under the following conditions.





Is the inspection result normal?
YES- Inspection End.
NO- Replace anti-theft horn relay.