Theft Deterrent System (W/O Entry And Start System) Security Horn Circuit

Securities. Camry. Acv40 Gsv40
Theft Deterrent. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER

INSPECT SECURITY HORN ASSEMBLY

CHECK HARNESS AND CONNECTOR (ENGINE ROOM J/B - SECURITY HORN ASSEMBLY)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ENGINE ROOM J/B)

CHECK HARNESS AND CONNECTOR (ENGINE ROOM J/B - BATTERY)

THEFT DETERRENT SYSTEM (w/o Entry and Start System) - Security Horn Circuit


DESCRIPTION

When the theft deterrent system is changed from the armed state to the alarm sounding state, the main body ECU can control the security horn.

WIRING DIAGRAM


Camry. Acv40 Gsv40.Theft Deterrent.Theft Deterrent System (W/ Entry And Start System).Theft Deterrent System (W/O Entry And Start System) Security Horn Circuit


INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER

  1. Connect the intelligent tester (with CAN VIM) to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the intelligent tester main switch on.

  1. Select the item below in the Active Test and then check that the horn sounds.

    Main Body (Main Body ECU):
    Item
    		Test Details
    		Diagnostic Note
    Security Horn
    		Security horn ON/OFF
    		-
    OK:
    The security horn sounds or stops correctly when operating it through the intelligent tester.


NG
Go to step 2
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2.INSPECT SECURITY HORN ASSEMBLY


    Camry. Acv40 Gsv40

  1. Remove the security horn assembly.

  1. Check operation of the horn.

    Standard:
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 1
    		Horn sounds
    Battery negative (-) → Horn body


NG
REPAIR OR REPLACE SECURITY HORN ASSEMBLY
OK


3.CHECK HARNESS AND CONNECTOR (ENGINE ROOM J/B - SECURITY HORN ASSEMBLY)


    Camry. Acv40 Gsv40.Theft Deterrent.Theft Deterrent System (W/ Entry And Start System).Theft Deterrent System (W/O Entry And Start System) Security Horn Circuit

  1. Disconnect the 1A J/B connector and the A23 horn connector.

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

    Standard resistance:
    Terminal Connection
    		Specified Condition
    1A-5 - A23-1
    		Below 1 Ω
    1A-5 - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ENGINE ROOM J/B)


    Camry. Acv40 Gsv40.Theft Deterrent.Theft Deterrent System (W/ Entry And Start System).Theft Deterrent System (W/O Entry And Start System) Security Horn Circuit

  1. Disconnect the E9 ECU connector and 1D J/B connector.

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

    Standard resistance:
    Symbol (Terminal Connection)
    		Specified Condition
    SH (E9-6) - (1D-11)
    		Below 1 Ω
    SH (E9-6) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK HARNESS AND CONNECTOR (ENGINE ROOM J/B - BATTERY)


    Camry. Acv40 Gsv40.Theft Deterrent.Theft Deterrent System (W/ Entry And Start System).Theft Deterrent System (W/O Entry And Start System) Security Horn Circuit

  1. Disconnect the 1G J/B connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard voltage:
    Terminal Connection
    		Specified Condition
    1G-1 - Body ground
    		10 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY