Chery Tiggo 5 (T21). Manual - part 71

06–

126

06

ET21065013

LL

BATTERY

ECM
MAIN 
RELAY

10A

EF19

10A

EF17

10A

EF40

A2

F14

2-20

RL

A4

2-35

L

2-5

Br

A6

2-15

2-16

RR

R

86

87

85

30

ENGINE 
COMPARTMENT 
FUSE AND 
RELAY BOX

IGNITION SWITCH
    ON OR START

A1

A2

A3

A4

A5

A6

A7

A8 A9 A10

F12

F24

F11

F23

F10

F22

F9

F21

F8

F20

F7

F19

F6

F18

F5

F17

F4

F16

F3

F15

F2

F14

F1

F13

Gr

E-076

W

E-069

E-076

E-069

B

E-033

49 50 51

63

64

15

16

31

32

47

48

33 34 35

17 18 19

1

2

3

52 53 54 55 56 57 58 59 60 61 62

36 37 38 39 40 41 42 43 44 45 46

20 21 22 23 24 25 26 27 28 29 30

4

5

6

7

8

9 10 11 12 13 14

ECM-2

E-033

RL

C9

10A

EF27

1-30

2

1

11

E-007
E-038

C1

C2

C3 C4

C5

C6

C7

C8 C9 C10

L

E-023

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

31

35

39

40

41

42

32

33

36

37

38 34

27

28

29

30

B

E-007

37 38 39 40 41 42 43 44 45 46

47

48

25 26 27 28 29 30 31 32 33 34

35

36

13 14 15 16 17 18 19 20 21 22

23

24

1

2

3

4

5

6

7

8

9 10

11

12

B

E-035

ECM-1

E-035

E-023

CANISTER 
SOLENOID 
VALVE

E-024

1

2

B

E-024

1-47

Br

Br

1-48

E-028

2-63

B

B

2-64

E-026

06–

127

06

DTC Confirmation Procedure

Confirm that battery voltage is over 12 V before performing the following procedures.
 Turn ignition switch to LOCK.
 Connect X-431 3G diagnostic tester (the latest software) to Data Link Connector (DLC).
 Turn ignition switch to ON.
 Use X-431 3G diagnostic tester to record and clear the DTCs stored in the ECM.
 Start the engine and warm it up to normal operating temperature, and then select Read Code.
 If the DTC is detected, the malfunction indicated by the DTC is current. Go to the diagnosis procedure - Step 1.
 If DTC is not detected, the malfunction indicated by the DTC is intermittent (

See page 06-18

).

Diagnosis Procedure

a. Turn ignition switch to LOCK.
b. Check ECM grounds E-026 and E-028 (

See page 06-18

).

DTC Code

DTC Definition

DTC Detection 

Condition

Possible Cause

P0444-00

Evaporative Emiss. 
System Purge Control 
Valve Circ. Open

Engine running

 Canister solenoid valve
 Wire harness or connector
 ECM

P0458-00

Evaporative Emission 
System Purge Control 
Valve Circuit Low

P0459-00

Evaporative Emission 
System Purge Control 
Valve Circuit High

CAUTION

 When performing circuit diagnosis and test, always refer to the circuit diagram for specific circuit and 

component information.

1

Check ECM ground point

Repair or replace ground wire harness or 
ground point

NG

OK

06–

128

06

a. Disconnect canister solenoid valve connector E-024.
b. Check canister solenoid valve connector.

a. Turn ignition switch to ON.
b. Measure voltage between canister solenoid valve 

connector terminal and body ground.

2

Check canister solenoid valve connector

RT21060240

Repair or replace connector

NG

3

Check canister solenoid valve power supply voltage

OK

E-024

1

2

-

+

V

RT21065047

Multimeter 

Connection

Condition

Specified 

Condition

E-024 (1) - Body 

ground

Ignition switch ON

11 to 14 V

Go to step 5

OK

NG

06–

129

06

a. Turn ignition switch to LOCK. 
b. Check fuse EF27 and main relay. 
c. Disconnect engine compartment fuse and relay box 

connector E-023. 

d. Check wire harness between canister solenoid valve 

connector terminals and engine compartment fuse and 
relay box connector terminals.
Check for Open

Check for Short

4

Check canister solenoid valve power supply circuit

E-024

1

2

E-023

C1

C2

C3 C4

C5

C6

C7

C8 C9 C10

-

+

RT21065048

Multimeter 

Connection

Condition

Specified 

Condition

E-024 (1) - 

E-023 (C9)

Always

Continuity

Multimeter 

Connection

Condition

Specified 

Condition

E-024 (1) or 

E-023 (C9) - 

Body ground

Always

No continuity

E-024 (1) or 

E-023 (C9) -

Battery positive

Always

No continuity

Repair or replace wire harness or 
connector (canister solenoid valve - 
engine compartment fuse and relay box)

NG

OK