Chery Tiggo 5 (T21). Manual - part 55

06–

62

06

a. Use X-431 3G diagnostic tester to read the ECM DTC.
b. Refer to "DTC Confirmation Procedure".
c. Check if DTC P0116-00, P0117-00 or P0118-00 still exists.

7

Check for DTCs

Replace ECM

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

NG

OK

06–

63

06

SQR484F ENGINE MANAGEMENT SYSTEM

DTC

P0121-00 Throttle/Pedal Pos. Sensor A Circ. Range/Performance

DTC

P0122-00 Throttle/Pedal Pos. Sensor A Circ. Low Input

DTC

P0123-00 Throttle/Pedal Pos. Sensor A Circ. High Input

ET21065006

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

1

4

2

5

3

6

1-23

1-11

1-22

1-14

1-43

1-13

RG

RL

RB

L

WL

RL

RG

RL

RB

R

WL

RL

ELECTRONIC
THROTTLE

M

8

5

7

4

6

3

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

E-007
E-038

1

2

3

4

5

6

B

E-009

E-009

ECM-1

E-035

06–

64

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 Definitions

DTC Detection 

Conditions

Possible Cause

P0121-00

Throttle/Pedal Pos. 
Sensor A Circ. Range/
Performance

Ignition switch ON 
Engine running

 Throttle position sensor 1 
 Wire harness or connector
 ECM

P0122-00

Throttle/Pedal Pos. 
Sensor A Circ. Low 
Input

P0123-00

Throttle/Pedal Pos. 
Sensor A Circ. High 
Input

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–

65

06

a. Disconnect electronic throttle connector E-009.
b. Check electronic throttle connector.

a. Connect throttle position sensor connector E-009.
b. Turn ignition switch to ON.
c. Using diagnostic tester, check throttle position sensor 1 

signal voltage.

2

Check electronic throttle connector

RT21060110

Repair or replace connector

NG

3

Check throttle position sensor 1 signal voltage

OK

RT21060120

sensor voltage from throttle potentiometer 1

sensor voltage from throttle potentiometer 2

additive correction of the mixture adaptation

Voltage PWG potentiometer 1

Voltage PWG potentiometer 2

Doubled PWG potentiometer-2 voltage

multiplicative correction of the mixture adaptation

lambda controller output

Datastream name

Value

1.00

1.03

0.00

0.77

0.38

0.75

0.78

V

V

V

V

V

%

4.22

Unit

Datastream

Condition

Standard Value 

(V)

Accelerator pedal released

0.78

Accelerator pedal depressed

4.29

Go to step 8

OK

NG