Chery Tiggo 5 (T21). Manual - part 80

06–

162

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

).

a. Disconnect ECM connector E-033 and E-035.
b. Check if connector is normal.

DTC

P1619-00 ECM Not Programmed (Virgin State)

DTC Code

DTC Definition

DTC Detection 

Condition

Possible Cause

P1619-00

ECM Not Programmed 
(Virgin State) 

Ignition switch ON

 Wire harness or connector
 ECM

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

2

Check ECM connector

OK

Repair or replace connector 

NG

OK

06–

163

06

a. Use X-431 3G diagnostic tester to read the ECM DTC.
b. Refer to "DTC Confirmation Procedure".
c. Check if DTC P1619-00 still exists.

3

Use X-431 3G diagnostic tester to match ECM (

See page 34-7

), and check for DTCs

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

06–

164

06

DTC

P0531-00

A/C Refrigerant Pressure Sensor "A" Circuit Range/
Performance

ET21065018

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-033

B

E-035

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

ECM-1

E-033

E-035

2-63

2-64

1-47

Br

Br

B

B

Br

B

1-48

E-026

E-028

2-19 2-24 2-47

A/C 
PRESSURE
SENSOR

3

2

1

LG

WL

YL

E-041

B

E-041

3

2

1

06–

165

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

).

a. Disconnect A/C pressure sensor connector E-041.

DTC Code

DTC Definition

DTC Detection 

Condition

Possible Cause

P0531-00

A/C Refrigerant 
Pressure Sensor "A" 
Circuit Range/
Performance

Ignition switch ON

 A/C pressure sensor
 Wire harness or connector
 ECM

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

2

Check A/C pressure sensor connector

OK

RT21060290