Page 2541 - Foton Workshop Manual - Sauvana

DIAGNOSIS-SERVICE BRAKING SYSTEM 62-489
C003108,C003200,C00A000,C00A100,C00A900-THE LEFT

FRONT WHEEL SPEED SENSOR FAULT

Circuit Diagram
62

ESP ECU
Left front Left front A08
wheel speed wheel speed
signal power
8 19

RL- OB-

1 2

Left front wheel
speed sensor
A31
fuwx62977

Phenomenon description:
The front left wheel speed sensor appears fault and other wheel speed sensor is normal.
△ PROMPT:
Take the left front wheel speed sensor as example, the right front wheel speed sensor,
Left trailing wheel speed sensor, right rear wheel speed sensor are detected with the same
method.

Diagnosis steps
1. Check battery voltage

(a). Unplug battery positive and negative binding post.
(b). Use a multimeter to measure the voltage
between the battery positive and negative
electrode.

Multimeter Standard value
connection pin

Battery positive
electrode - negative Approx 12V
electrode

Page 2541