Chery A series. Manual — part 85
ABS coding error
Possible Cause
5. The DTC is 01044
[Description] The DTC will appear when the
ECU’s software coding is inconsistent with
the hardware connection of ABS harness.
* The error connection of pin
in ABS harness
*
ABS coding error
Incorrect
Recoding (coding is 01901)
Abnormal
Repair harness
Use the diagnostic tester to check
whether the ABS ECU software
coding is correct
The correct value: Refer to the related
ABS electrical circuit diagram
Check whether the ABS harness pins
are connected
Pin connection: Refer to the related
ABS electrical circuit diagram
Supply terminal 30
Possible Cause
6. The DTC is 00668
[Description] The DTCs will appear when the
supply terminal 30# provides the
voltage or over-high voltage.
* ABS system’s fuse broken
* Too low or over-high battery
voltage
* ABS electrical harness connections
damaged
* ABS ECU damaged
Abnormal
Check the ABS system’s 30# fuse
Replace the fuse
Normal
Abnormal Abnormal
Check the ABS harness connections
Repair the connections
Normal No
Retest. The abnormal reoccur?
Refer to “Repair Details
of Random Failure”
Yes
Check the battery voltage
Normal
Replace the ABS ECU
Disconnect the connection of ABS
electrical harness with the ECU,
turn the ignition switch to “ON”,
and measure the voltage between
the following terminals of ABS
electrical harness.
Terminal 8 and 9: 9.5-16.5V
Terminal 24 and 25: 9.5-16.5V
ABS operation abnormal
Possible Cause
7. The DTC is 01130
[Description] The DTC will appear when the ABS
is interfered by the high-frequency
electromagnetic wave or when the
microprocessor believes that the
input speed signal is incredible.
* High-frequency
electromagnetic wave
interference
* Sensor damaged or sensor
electrical harness damaged
* ABS ECU damaged
No Abnormal
Check the sensor output voltage
Check sensor Replace sensor
Normal Normal
Replace ABS ECU
Check the harness between
ECU and sensor
DTC Failure Check Sheet
Turn the ignition switch to “ON” position (the engine shuts down), and the ABS
warning lamp doesn’t light
Possible Cause
[Description] If the ABS warning lamp fails to light, it is
possible that the supply circuit of warning lamp is
open circuit, the bulb is burnt, or the warning
lamp control is damaged.
* The fuse broken
* The bulb of ABS warning
lamp fuse is broken
* The supply circuit broken
* The ABS warning lamp
controller broken
P-34
P-35
Abnormal
Abnormal
Abnormal
Check the ABS warning lamp’s fuse
Abnormal
in the central electrical box
Replace
Normal
Check the central electrical box fuse socket
Replace the fuse socket
Normal
Remove the ABS ECU connection
Check whether the bulb of ABS
Yes
Ignition switch: ON
warning lamp is burnt or not
Replace
The warning lamp lights?
No
Yes
Check the open short circuit of
Abnormal
Check the short circuit or earth of electrical
warning lamp supply circuit and
Replace the electrical harness
wire, in ABS harness, connecting with ABS
ground circuit in ABS harness
warning lamp controller and ECU
Normal
Yes
Check the connectors of warning
Abnormal Repair the connector
Replace the electrical harness
lamp supply and ground circuits
Normal No
Refer to “Repair Details
Failure reoccurs or not
of Random Failure”
Yes
The ABS warning lamp lights after the engine starts.
Possible Cause
[Description] The possible cause may be the
ABS warning lamp controller
damaged or ABS warning lamp
circuit open circuit
* Warning lamp controller
damaged
* Short circuit of ABS
warning lamp controller
* ABS ECU damaged
Replace the warning lamp controller
P-36
Caution: This failure mode is available only when the system can communicate with
the diagnostic instrument (ABS ECU power supply normal) and there is no
DTC.
Check the open circuit of wires between
Yes
ECU and ABS warning lamp controller
Replace harness
No Abnormal
Check the ABS warning lamp controller
Replace
Normal
Replace the ABS ECU
ABS operation abnormal
Possible Cause
[Description] This problem is related closely to
the driver and road conditions, and
thus it is difficult to diagnose this
failure. However, if there is no DTC
memory, the following checks may be
conducted.
* Improper installation of
sensor
* Sensor harness problem
* Sensor damaged
* Gear ring damaged
* Sensor adhered with
foreign material
* Wheel bearing damaged
* ABS HCU (Hydraulic
Control Unit) damaged
* ABS ECU (Electronic
Control Unit) damaged
P-37
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