Security Horn Circuit

THEFT DETERRENT: THEFT DETERRENT SYSTEM: Security Horn Circuit
- Security Horn Circuit

DESCRIPTION

When the theft deterrent system is operating, the relay in the main body ECU RH turns on and off, causing the security horn to sound.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT SECURITY HORN ASSEMBLY

(a) Remove the security horn assembly.





(b) Check operation of the horn.

Standard:





NG -- REPAIR OR REPLACE SECURITY HORN ASSEMBLY
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU RH (COWL SIDE J/B RH) - SECURITY HORN ASSEMBLY)

(a) Disconnect the A36 ECU connector and the A37 horn connector.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE