Diagnosis Procedure

Check horn function with horn switch.

Do the horn sound? 

YES >> GO TO 2.

NO >> Refer to "WIRING DIAGRAM - HORN - ".

1. Disconnect IPDM E/R connector.
2. Check voltage between IPDM E/R harness connector and ground.

   (+)		(-)	Voltage (V) (Approx.)
   IPDM E/R
   Connector	Terminal
   E13	34	Ground	Battery voltage

   Is the inspection result normal? 

   YES >> Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".

   NO >> GO TO 3.

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

   IPDM E/R		Horn relay		Continuity
   Connector	Terminal	Connector	Terminal
   E13	34	E5	1	Existed

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

   IPDM E/R		Ground	Continuity
   Connector	Terminal
   E13	34		Not existed

   Is the inspection result normal? 

   YES >> GO TO 4.

   NO >> Repair or replace harness.

>> INSPECTION END