Toyota RAV4 Immobilizer System Wiring Diagrams

Notes:

Below are wiring diagrams for connecting the immobilizer system to understand the functionality and dependency of the circuits when repairing/replacing the relevant parts.

Scheme 1. Immobilizer system connections:

1  - fuse AM2 (30 A):

2  - IGN fuse (7.5 A);

3  - fuse AM2-2 (7.5 A),

4  - electronic block of the body;

6  - fuse ACC-B (25 A),

6  - fusible insert ALT (120 A);

7  - fuse IG2 (15 A);

8  - relay ST;

9  - ACC relay;

10  - relay IG1:

11  - relay IG2;

12  - starter blocking switch;

13  - battery;

14  - starter;

15  - selector lever switch;

16  - relay ST CUT.

Scheme 2. Connections of the immobilizer system :

1  - electronic block of the body;

2  - STOP fuse (10 A);

3  - STR LOCK fuse (20 A);

4  - fuse ECU-B (10 A);

5  - electric power steering motor reducer;

6  - electronic control unit for the electric power steering system;

7  - electronic engine control unit;

8  - diagnostic block.

Scheme 3. Connections of the immobilizer system:

1  - electronic block of the body;

2  - fuse;

3  - IGN fuse (10 A);

4  - fuse ECU-IG1 (10 A);

5  - key unlock switch;

6  - electric key of the immobilizer system;

7  - signal amplifier;

8  - electronic steering lock control unit,

9  - remote door lock system receiver;

10  - control block;

11  - sensor in the outer door handle,

12  - electronic block for identifying the incoming signal.

Scheme 4. Connections of the immobilizer system :

1  - electronic block of the body;

2  - ACC fuse (7.5 A);

3  - HORN fuse (10 A);

4  - FLSH relay;

5  - HORN relay;

6, 7  - sound signals;

8  - electronic steering lock control unit;

9  - electronic block of the ignition switch (lock);

10, 11  - electronic block of the ignition key;

12  - coil of an electronic ignition key;

13  -  amplifier of the electronic ignition key;

14  - sensor in the outer door handle.

Diagram 5. Immobilizer system connections:

1  - electronic block of the body;

2, 4  - ECU-B fuse (10 A);

3  - fuse GAUGE 2 (7.5 A);

5  - instrument cluster;

6  - electronic transmission control unit.

Scheme 6. Connections of the immobilizer system :

1  - electronic block of the body;

2  - DOOR fuse (25 A);

3  - limit switch of the left front door;

4  - limit switch of the right front door;

5  - limit switch of the right rear door;

6  - limit switch of the left rear door;

7  - tailgate limit switch;

8  - tailgate lock;

9  - lock of the right front door;

10  - lock of the left front door;

11  - lock of the right rear door;

12  - left rear door lock.

Source:  TOYOTA RAV4 Operation and Repair Manual since 2005 (Third Rome)