Chery Tiggo 5 (T21). Service manual — part 54

06–

58

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

P0116-00

Engine Coolant Temp.
Circ. Range/
Performance

Ignition switch ON
Engine running

 Engine coolant temperature sensor
 Wire harness or connector
 ECM

P0117-00

Engine Coolant Temp.
Circ. Low Input

P0118-00

Engine Coolant Temp.
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–

59

06

a. Disconnect engine coolant temperature sensor connector

E-021.

b. Check engine coolant temperature sensor connector.

a. Turn ignition switch to ON.
b. Check voltage between engine coolant temperature

sensor terminal and body ground.

2

Check engine coolant temperature sensor connector

RT21060090

Repair or replace connector

NG

3

Check engine coolant temperature sensor power supply voltage

OK

E-021

1

2

-

+

V

RT21065021

Multimeter

Connection

Condition

Specified

Condition

E-021 (2) - Body

ground

Ignition switch ON

5 V

Go to step 5

OK

NG

06–

60

06

a. Turn ignition switch to LOCK.
b. Disconnect ECM connector E-035.
c. Check wire harness between engine coolant temperature

sensor connector terminals and ECM connector
terminals.
Check for Open

Check for Short

4

Check engine coolant temperature sensor power supply circuit

E-021

E-035

1

2

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

-

+

RT21065022

Multimeter

Connection

Condition

Specified

Condition

E-021 (2) - E-035

(37)

Always

Continuity

Multimeter

Connection

Condition

Specified

Condition

E-021 (2) or

E-035 (37) - Body

ground

Always

No continuity

E-021 (2) or
E-035 (37) -

Battery positive

Always

No continuity

Replace wire harness or connector
(engine coolant temperature sensor -
ECM)

NG

OK

06–

61

06

a. Check wire harness between engine coolant temperature

sensor connector terminals and ECM connector
terminals.
Check for Open

Check for Short

a. Remove engine coolant temperature sensor.
b. Check resistance of engine coolant temperature sensor.

5

Check engine coolant temperature sensor ground circuit

E-021

E-035

1

2

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

-

+

RT21065023

Multimeter

Connection

Condition

Specified

Condition

E-021 (1) - E-035

(20)

Always

Continuity

Multimeter

Connection

Condition

Specified

Condition

E-021 (1) or

E-035 (20) - Body

ground

Always

No continuity

E-021 (1) or
E-035 (20) -

Battery positive

Always

No continuity

Repair or replace wire harness or
connector (engine coolant temperature
sensor - ECM)

6

Check engine coolant temperature sensor

NG

OK

-

+

1

2

RT21060100

Multimeter

Connection

Specified Condition

1 - 2

Resistance is 2.5 kΩ ± 5% (20°C),

300 - 400 Ω in boiled water (value

changes with boiled water

temperature)

Replace engine coolant temperature
sensor

NG

OK