25 - BRAKE CONTROL SYSTEM
DTC Code
DTC Definitions
Left Front Wheel
C0031-00
Speed Sensor
Left Front Wheel
C0031-09
Speed Sensor
Left Front Wheel
C0031-11
Speed Sensor
Left Front Wheel
C0031-12
Speed Sensor
Left Front Wheel
C0031-13
Speed Sensor
Left Front Wheel
C0031-29
Speed Sensor
CAUTION
When performing electrical equipment diagnosis and test, always refer to the circuit diagram for related
circuit and component information.
Diagnosis Procedure
1
Check front left wheel speed sensor wire harness and connector
a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the front left wheel speed sensor connector E-060.
d. Check if the wire harnesses are worn, pierced, pinched or partially broken.
e. Look for broken, bent, protruded or corroded terminals.
25
f. Check if related connector pins are in good condition.
Repair or replace front left wheel speed
NG
sensor wire harness and connector
32
25–
DTC Detection
Conditions
Wheel speed sensor signal wire is
These DTCs occur
when any of the
following conditions is
Wheel speed sensor signal wire is
met:
1. ABS control module
Wheel speed sensor line is open,
assembly detects
that the wheel
Wheel speed sensor signal wire is
speed sensor signal
wire is short to
Wheel speed sensor power supply
ground.
2. Wheel speed sensor
Sensor head or plug pin is damaged.
line is open.
Wheel speed sensor is interfered by
3. ABS control module
assembly detects
that the wheel
speed sensor signal
Wheel speed sensor body is
wire is short to
power supply.
Ring gear is not installed, has teeth
4. ABS control module
assembly detects
that the wheel
Clearance between sensor and ring
speed sensor power
supply wire is short
Number of ring gear teeth is wrong.
to ground.
Tire size is not as specified.
5. Wheel speed sensor
ABS control module assembly is
signal is invalid.
Possible Cause
connecting with the power supply wire
in reverse.
short to ground.
connector is loose or broken.
short to power supply.
wire is short to ground.
magnetic field outside (wheel or axle is
not demagnetized).
malfunctioning.
missing, dirty, demagnetized or off
center.
gear is excessive.
damaged.
Chery Automobile Co., Ltd.