Toyota 2007 RAV4 Electrical Wiring Diagram page 254

System Outline
Driving conditions are detected through indicators such as wheel speed, yaw rate sensor and steering angle signals, which
are sent by ECUs, sensors and switches. The current delivered to the solenoid is controlled to provide the optimum torque to
the rear wheels, in accordance with the driving conditions.
∗ Auto mode control
∗ The torque distribution to the rear wheels is increased at vehicle start, to ensure a stable start.
∗ The torque distribution to the rear wheels is reduced during slow speed driving to stabilize.
∗ During stable driving, the torque distribution to the rear wheels is discontinued, making the vehicle front wheel drive and
reducing fuel consumption.
∗ During deceleration using the brakes, the 4 wheel drive is released to enhance the effect of the ABS/VSC control.
∗ Lock mode control
∗ The torque distribution to the rear wheels is fixed at the maximum level.
∗ At vehicle start, the torque distribution to the rear wheels is set at the maximum level to facilitate escape from the stuck
condition.
∗ The mode automatically reverts to auto mode at a vehicle speed of 40 km/h or over.
: Parts Location
Code See Page
A3 56
50 (2GR–FE)
A9 A9 A A
52 (2AZ–FE)
50 (2GR–FE)
A19 A19
52 (2AZ–FE)
A35 56
A36 56
A37 56
A38 56
B3 51 (2GR–FE)
: Relay Blocks
Code See Page Relay Blocks (Relay Block Location)
22 (2GR–FE)
1 1 Engine Room R/B No.1 (Engine Compartment Left) Engine Room R/B No.1 (Engine Compartment Left)
23 (2AZ–FE)
26 (2GR–FE)
2 2 Engine Room R/B No.2 (Engine Compartment Right) Engine Room R/B No.2 (Engine Compartment Right)
27 (2AZ–FE)
: Junction Block and Wire Harness Connector
Code See Page Junction Block and Wire Harness (Connector Location)
3A
38 38 Instrument Panel Wire and J/B No.3 (Instrument Panel Center) Instrument Panel Wire and J/B No.3 (Instrument Panel Center)
3B
IB 30 Engine Room Main Wire and Instrument Panel J/B (Cowl Side Left)
ID
IE
30 30 30
IH
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Left) Instrument Panel Wire and Instrument Panel J/B (Cowl Side Left) Instrument Panel Wire and Instrument Panel J/B (Cowl Side Left) Instrument Panel Wire and Instrument Panel J/B (Cowl Side Left)
IM
31 31
IS
: Connector Joining Wire Harness and Wire Harness
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
AE4 66 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel)
64 (2GR–FE)
BA1 BA1 Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B No.1 and Engine Room J/B No.1) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B No.1 and Engine Room J/B No.1)
65 (2AZ–FE)
EK1
66 66 Instrument Panel Wire and Floor Wire (Left Kick Panel) Instrument Panel Wire and Floor Wire (Left Kick Panel)
EK2
MK1 67 Floor No.4 Wire and Floor Wire (Left Quarter Panel)
MO1 67 Floor No.4 Wire and Frame No.3 Wire (Near the Rear Differential)
Code See Page
B3 53 (2AZ–FE)
B22 53 (2AZ–FE)
51 (2GR–FE)
B26 B26
53 (2AZ–FE)
B 51 (2GR–FE)
B30 B30
C 53 (2AZ–FE)
B46 51 (2GR–FE)
E11 54
E13 54
E17 C 54
RAV4 (EM03T0U)
Code See Page
E19 54
E41 55
E50 55
E57 55
E68 55
E69 55
E70 55
K6 59
O1 61
253