Chery Tiggo 5 (T21). Manual - part 282

25–

61

25

n. Using a digital multimeter, check for continuity between 

the terminal 1 of connector B-009 and the terminal 2 of 
connector B-054 to check if there is an open in the rear 
right wheel speed sensor signal wire 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.

RT21250460

-

+

2

1

B-009

1

2

3

4

5

6

7

8

9 10 11

12 13 14 15 16 17 18 19 20 21 22

B-054

Multimeter 

Connection 

Terminal

Condition

Specified 

Condition

B-009 (1) - B-054 

(2)

Always

Continuity

Repair or replace wire harness and 
connector between wheel speed sensor 
and ABS control module assembly

NG

6

Reconfirm DTCs

OK

System operates normally

NO

Replace ABS control module assembly

YES

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25

DTC

C1000-16 ECU Voltage Supply

DTC

C1000-17 ECU Voltage Supply

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

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63

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. Using a digital multimeter, measure the voltage between positive battery terminal and negative battery 

terminal.

b. The battery voltage should be between 9 V and 16 V.

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.

DTC Code

DTC Definitions

DTC Detection 

Conditions

Possible Cause

C1000-16

ECU Voltage Supply

These DTCs occur 
when any of the 
following conditions is 
met:
1. Battery voltage is 

too high.

2. Battery voltage is 

too low.

3. Body ground is poor.

 Fuse malfunction
 High or low battery voltage 
 Charging system malfunction
 Wire harness or connector damaged
 ABS control module assembly 

malfunction

C1000-17

ECU Voltage Supply

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 battery

OK

Check charging system (

See page 16-6

)

NG

3

Check ABS control module assembly wire harness and connector

OK

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25

e. Look for broken, bent, protruded or corroded terminals.
f. Check if related connector pins are in good condition. 

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

Repair or replace ABS control module 
assembly wire harness and connector

NG

4

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

OK

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 

Terminal

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

OK