Chery Tiggo 5 (T21). Service manual - part 283

25–

65

25

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the ABS control module assembly connector 

E-085.

d. Using a digital multimeter, check for continuity between 

ABS control module assembly connector E-085 and body 
ground to check if the system ground circuit is normal 
according to the table below.
Standard Condition

a. Use X-431 3G diagnostic tester to clear the DTC.
b. Start the engine.
c. Drive the vehicle at 15 km/h or more, read the ABS control module assembly DTC again with X-431 3G 

diagnostic tester.

d. Check if the same DTC is output.

5

Check wire harness and connector (ABS control module assembly - body ground)

RT21250210

E-085

13

12 11 10 9 8 7 6 5 4 3 2

24 23 22 21 20 19 18 17 16 15 14

37 36 35 34 33 32 31 30 29 28 27 26

1

38

25

-

+

Multimeter 

Connection 

Terminal

Condition

Specified 

Condition

E-085 (13) - Body 

ground

Always

Continuity

E-085 (38) - Body 

ground

Always

Continuity

Repair or replace ABS control module 
assembly wire harness and connector

NG

6

Reconfirm DTCs

OK

System operates normally

NO

Replace ABS control module assembly

YES

25–

66

25

DTC

C1001-04 ECU

DTC

C1009-00 ECU Hardware Related

ET21250110

ABS
CONTROL
MODULE

IGNITION SWITCH
    ON OR START

A10

28

EF34

20A

EF36

10A

ENGINE 
COMPARTMENT
FUSE AND 
RELAY BOX

RL

13

12 11 10 9 8 7 6 5 4 3 2

24 23 22 21 20 19 18 17 16 15 14

37 36 35 34 33 32 31 30 29 28 27 26

1

38

25

Gr

E-076

A1

A2

A3

A4

A5

A6

A7

A8 A9 A10

E-076

B

E-085

E-085

38

13

Br

B

E-042

25–

67

25

Diagnosis Procedure

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Remove the ABS fuse EF-36 (10 A) from the engine compartment fuse and relay box.
d. Check if the fuse is blown.

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the ABS control module assembly connector E-085.
d. Check if the wire harnesses are worn, pierced, pinched or partially broken.
e. Look for broken, bent, protruded or corroded terminals.
f. Check if related connector pins are in good condition. 

DTC Code

DTC Definitions

DTC Detection 

Conditions

Possible Cause

C1001-04

ECU

These DTCs occur 
when any of the 
following conditions is 
met:
1. ABS control module 

assembly power 
supply is 
malfunctioning.

2. ABS control module 

assembly is 
damaged.

 Fuse malfunction
 Wire harness or connector damaged
 ABS control module assembly 

malfunction

C1009-00

ECU Hardware 
Related

CAUTION

 When performing electrical equipment diagnosis and test, always refer to the circuit diagram for related 

circuit and component information.

1

Check ABS fuse

Replace ABS fuse

NG

2

Check ABS control module assembly wire harness and connector

OK

Repair or replace ABS control module 
assembly wire harness and connector

NG

OK

25–

68

25

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the ABS control module assembly connector 

E-085.

d. Connect the negative battery cable.
e. Turn ignition switch ON.
f. Using a digital multimeter, measure the supply voltage 

between ABS control module assembly connector E-085 
and body ground to check if the power supply circuit is 
normal according to the table below.
Standard Voltage

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the ABS control module assembly connector 

E-085.

d. Using a digital multimeter, check for continuity between 

ABS control module assembly connector E-085 and body 
ground to check if the system ground circuit is normal 
according to the table below.
Standard Condition

3

Check wire harness and connector (ABS control module assembly - battery)

RT21250470

E-085

13

12 11 10 9 8 7 6 5 4 3 2

24 23 22 21 20 19 18 17 16 15 14

37 36 35 34 33 32 31 30 29 28 27 26

1

38

25

-

+

V

Multimeter 

Connection

Condition

Specified 

Condition

E-085 (28) - Body 

ground

Ignition switch ON

9 to 16 V

Repair or replace engine compartment 
wire harness and connector

NG

4

Check wire harness and connector (ABS control module assembly - body ground)

OK

RT21250210

E-085

13

12 11 10 9 8 7 6 5 4 3 2

24 23 22 21 20 19 18 17 16 15 14

37 36 35 34 33 32 31 30 29 28 27 26

1

38

25

-

+

Multimeter 

Connection

Condition

Specified 

Condition

E-085 (13) - Body 

ground

Always

Continuity

E-085 (38) - Body 

ground

Always

Continuity

Repair or replace ABS control module 
assembly wire harness and connector

NG

OK