Toyota 2007 YARIS Wiring Diagrams page 157

ABS
System Outline
1. Speed Sensor
Detects the wheel speed of each of four wheels.
2. Skid Control ECU
Based on signals from the sensors, it judges the vehicle driving condition and sends the brake control signal to the brake
actuator.
3. ABS Warning Light
Lights up to alert the driver when the ECU detects a malfunction in the ABS system and stopps the system.
4. Brake Warning Light
Lights up simultaneously with the ABS warning light to alert the driver when the ECU detects a malfunction not only in the
ABS but also in the EBD. Single light–up of the brake warning light alerts the driver when the ECU detects a malfunction in
the brake system.
5. Engine Control Computer
Sends signals such as park/neutral position SW, TC switch, etc., to the skid control ECU with actuator.
: Parts Location
Code See Page
46 (H/B)
A7 A7
48 (S/D)
46 (H/B)
A10 A10
48 (S/D)
46 (H/B)
A11 A11
48 (S/D)
50 (H/B)
A13 A13
52 (S/D)
46 (H/B)
A15 A15
48 (S/D)
A21 A 46 (H/B)
: Relay Blocks
Code See Page
1 24
: Junction Block and Wire Harness Connector
Code See Page
4B 30
4D 30
4M 31
156
Code
A21 A
A25 A25
C20 C20 B B
D1 D1 A A
D2 B
D15 D15
D41
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel)
Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
YARIS (EM01V0U)
See Page
48 (S/D)
46 (H/B)
48 (S/D)
47 (H/B)
49 (S/D)
51 (H/B)
53 (S/D)
51 (H/B)
51 (H/B)
53 (S/D)
51 (H/B)
Code See Page
D41 53 (S/D)
51 (H/B)
D42 D42
53 (S/D)
D76 C 53 (S/D)
54 (5–Door)
56 (3–Door)
Z1 Z1 Z1
58 (4–Door)
54 (5–Door)
56 (3–Door)
a1 a1 a1
58 (4–Door)