Chery Tiggo 5 (T21). Manual - part 76

06–

146

06

ET21065016

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

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

EF38

7.5A

A8

RL

RL

1-47

Br

Br

1-48

E-028

2-63

B

B

2-64

E-026

2-41

F6

F7

2

5

1

3

B6

EF35

15A

R

R

FUEL PUMP MOTOR

M

B

4

3

FUEL 
PUMP 
RELAY

13

E-070
B-048

B-038

B-036

B1

B2

B3

B4

B5

B6

B7

B8 B9 B10

1

2

3

4

Y

E-073

E-073

W

E-070

1

2

3

4

5

6

7

8

9 10

11 12 13 14 15

18

17

16

19 20 21 22

B

B-038

06–

147

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.
 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

P0627-00

Fuel Pump "A" Control 
Circuit/Open

Ignition switch ON
Engine running

 Fuel pump relay
 Wire harness or connector
 ECM
 Engine compartment fuse and relay 

box

P0628-00

Fuel Pump "A" Control 
Circuit Low

P0629-00

Fuel Pump "A" Control 
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–

148

06

a. Unplug fuel pump relay from engine compartment fuse 

and relay box. 

b. Check fuel pump relay terminals.

a. Disconnect engine compartment fuse and relay box 

connector E-069.

b. Disconnect ECM connector E-033.
c. Check wire harness between connector terminals.

Check for Open

Check for Short

2

Check fuel pump relay

-

+

2

1

5

3

1

2

3

5

RT21060270

Multimeter 

Connection

Specified Condition

3 - 5

No continuity

3 - 5

Continuity 

(when battery voltage is applied 

between terminals 1 and 2)

Replace fuel pump relay

NG

3

Check fuel pump relay control circuit

OK

E-033

E-069

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

F12

F24

F11

F23

F10

F22

F9

F21

F8

F20

F7

F19

F6

F18

F5

F17

F4

F16

F3

F15

F2

F14

F1

F13

-

+

RT21065056

Multimeter Connection

Specified 

Condition

E-033 (41) - E-069 (F7)

Continuity

Multimeter Connection

Specified 

Condition

E-033 (41) or E-069 (F7) - 

Body ground

No continuity

E-033 (41) or E-069 (F7) - 

Battery positive

No continuity

Repair or replace wire harness or 
connector (engine compartment fuse and 
relay box - ECM)

NG

OK

06–

149

06

a. Turn ignition switch to ON.
b. Measure voltage between terminal of fuel pump relay and 

body ground.

a. Use X-431 3G diagnostic tester to read the ECM DTC.
b. Refer to "DTC Confirmation Procedure".
c. Check if DTC P0627-00, P0628-00 or P0629-00 still exists.

4

Check fuel pump relay terminal voltage

RT21060280

-

+

V

1

2

5
3

Multimeter 

Connection

Condition

Specified 

Condition

Fuel pump relay 

terminal 1 (engine 
compartment fuse 

and relay box 

side) - Body 

ground

Ignition switch ON

11 to 14 V

Go to step 6

OK

5

Check main relay and fuse EF38

NG

Replace main relay or fuse

NG

Repair or replace engine compartment fuse and relay box or wire harness (engine compartment fuse 
and relay box - battery)

6

Check for DTCs

OK

Replace ECM

NG

System is operating normally. 
Reassemble vehicle and perform a road test to confirm that malfunction reported by customer has 
been repaired.

OK