Theft Deterrent System (W/ 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 (SECURITY HORN)

INSPECT FUSE (S-HORN FUSE)

INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY (S-HORN RELAY)

CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK - BATTERY)

CHECK HARNESS AND CONNECTOR (INCLUDING SECURITY HORN ASSEMBLY)

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

INSPECT SECURITY HORN ASSEMBLY

THEFT DETERRENT SYSTEM (w/ 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 certification ECU transmits a signal to cause the security horn to sound.

WIRING DIAGRAM


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


INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SECURITY HORN)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Press the intelligent tester main switch on.

  1. Select the item below in the Active Test and then check that the indicator operates.

    Smart (Certification ECU):
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Security Horn
    		Security horn
    		ON/OFF
    		-
    OK:
    The security horn assembly sounds and stops correctly when operated through the intelligent tester.


NG
Go to step 2
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (CAMRY_ACV40 RM0000028IV00KX.html)

2.INSPECT FUSE (S-HORN FUSE)

  1. Remove the S-HORN fuse from the engine room J/B.

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

    Standard resistance:
    Terminal Connection
    		Condition
    		Specified Condition
    S-HORN fuse
    		Always
    		Below 1 Ω


NG
REPLACE S-HORN FUSE
OK


3.INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY (S-HORN RELAY)


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

  1. Remove the engine room J/B from the engine room R/B and J/B.

  1. Connect a positive (+) lead from the battery to terminal 1G-1.

  1. Connect a negative (-) lead from the battery to terminal 1D-11.

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

    Standard voltage:
    Terminal Connection
    		Condition
    		Specified Condition
    1A-5 - Body ground
    		Always
    		10 to 14 V


NG
REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY
OK


4.CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK - BATTERY)


    Camry. Acv40 Gsv40.Theft Deterrent.Theft Deterrent System (W/ Entry And Start System).Theft Deterrent System (W/ 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
    		Condition
    		Specified Condition
    1G-1 - Body ground
    		Always
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK HARNESS AND CONNECTOR (INCLUDING SECURITY HORN ASSEMBLY)


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

  1. Disconnect the 1A J/B connector.

  1. Connect a positive (+) lead from the battery to terminal 1A-5.

  1. Connect a negative (-) lead from the battery to body ground.

  1. Check the operation of the horn.

    Standard:
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 1A-5
    		Horn sounds
    Battery negative (-) → Body ground


NG
Go to step 7
OK


6.CHECK HARNESS AND CONNECTOR (ENGINE ROOM J/B - CERTIFICATION ECU)


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

  1. Disconnect the E75 ECU connector.

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

    Standard resistance:
    Terminal Connection
    		Condition
    		Specified Condition
    E75-20 (SH-) - 1D-11
    		Always
    		Below 1 Ω
    E75-20 (SH-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

7.INSPECT SECURITY HORN ASSEMBLY


  1. for RHD:



      Camry. Acv40 Gsv40

    1. Remove the security horn assembly (CAMRY_ACV40 RM000001QZS004X.html).

    2. Check the operation of the horn.

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


  1. for LHD:



      Camry. Acv40 Gsv40

    1. Remove the security horn assembly (CAMRY_ACV40 RM000001QZS004X.html).

    2. Check the operation of the horn.

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


NG
REPLACE SECURITY HORN ASSEMBLY (CAMRY_ACV40 RM000001QZS004X.html)
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM R/B AND J/B - SECURITY HORN ASSEMBLY)