Horn Function Check

INTELLIGENT KEY SYSTEM

Horn Function Check

First perform the "SELF-DIAG RESULTS" of "BCM" with CONSULT, then perform the trouble diagnosis of malfunction system indicated in "SELF-DIAG RESULTS" of "BCM". CAN Communication Inspection Using CONSULT (Self-Diagnosis)
.

1. CHECK HORN OPERATION

Check if horn sounds with horn switch.
Does horn operate?
Yes- GO TO 2
No- Check horn circuit.

2. CHECK IPDM E/R INPUT SIGNAL

Check voltage between IPDM E/R connector and ground.





OK or NG
OK- Replace IPDM E/R. Service and Repair.





NG- GO TO 3

3. CHECK HORN RERAY 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.










OK or NG
OK- Check condition of harness and connector.
NG- Repair or replace harness.