Chery Tiggo 5 (T21). Manual - part 393

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47

35

Self-diagnosis Detection Logic

HINT:
While performing the electrical diagnosis and testing, always refer to the relevant circuit diagram for the 
special circuit and component information.

Diagnosis Procedure

a. Remove the position light bulb, and check if the position light bulb filament is blown.

Use the circuit diagram as a guide to perform the following procedures:
a. Turn ignition switch to LOCK, and disconnect the negative battery cable.
b. Disconnect the Body Control Module (BCM) connectors B-043 and E-072.
c. Disconnect the front left headlight wire harness connector E-056 and rear left combination light wire 

harness connector B-021.

d. Disconnect the body wire harness connector B-048 and engine compartment wire harness connector 



E-070.

e. Check if wire harnesses are worn, pierced, pinched or partially broken.
f. Look for broken, bent, protruded or corroded terminals.
g. Check if the related connector terminal contact pins are in good condition.

DTC Code

DTC Definitions

DTC Detection 

Conditions

DTC Setting Conditions

B100311

Left Park Light Output 
Control Circuit Circuit 
Short to Ground

Ignition switch ON

 Position light bulb
 Wire harness or connector
 Body Control Module (BCM)

B100313

Left Park Light output 
Control Circuit Circuit 
Open

B100319

Left Park Light Output 
Control Circuit Circuit 
Current Above 
Threshold

1

Check position light bulb

Replace position light bulb

NG

2

Check wire harness and connector

OK

Repair or replace related wire harness and 
connector

NG

OK

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48

35

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the Body Control Module (BCM) connectors 

B-043 and E-072.

d. Using a digital multimeter, check for continuity between 

terminal C7 of BCM connector B-043 and terminal E1 of 
BCM connector E-072 to check if it is short to power 
supply according to the table below.
Standard Condition

e. Using a digital multimeter, check for continuity between 

terminal C7 of BCM connector B-043 and body ground to 
check if it is short to ground according to the table below.
Standard Condition

3

Check left position light control circuit

-

+

RT21350600

C1

C10 C11 C12 C13 C14 C15 C16 C17 C18

C2 C3 C4 C5

C6 C7 C8 C9

C20

C19

B-043

E-072

E1

Multimeter 

Connection

Condition

Specified 

Condition

B-043 (C7) - 

E-072 (E1)

Always

No continuity

-

+

RT21350610

C1

C10 C11 C12 C13 C14 C15 C16 C17 C18

C2 C3 C4 C5

C6 C7 C8 C9

C20

C19

B-043

Multimeter 

Connection

Condition

Specified 

Condition

B-043 (C7) - Body 

ground

Always

No continuity

Repair or replace related wire harness and 
connector

NG

OK

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49

35

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the Body Control Module (BCM) connector 



B-043.

d. Disconnect the front left headlight wire harness 

connector E-056 and rear left combination light wire 
harness connector B-021.

e. Disconnect the body wire harness connector B-048 and 

engine compartment wire harness connector E-070.

f. Using the digital multimeter, check for continuity between 

terminal C7 of BCM connector B-043 and terminal 16 of 
body wire harness connector B-048 according to the 
table below.
Standard Condition

g. Using a digital multimeter, check for continuity between 

terminal 16 of engine compartment wire harness 
connector E-070 and terminal 8 of front left headlight wire 
harness connector E-056 according to the table below.
Standard Condition

4

Check wire harness and connector (left position light - Body Control Module (BCM))

-

+

RT21350620

C1

C10 C11 C12 C13 C14 C15 C16 C17 C18

C2 C3 C4 C5

C6 C7 C8 C9

C20

C19

B-043

1

2

3

4

5

11

12

13

14

15

6

7

8

9

10

22 21 20 19 18 17

16

B-048

Multimeter 

Connection

Condition

Specified 

Condition

B-043 (C7) - 

B-048(16)

Always

Continuity

-

+

RT21350630

E-070

1

2

3

4

5

6

7

8

9 10

11 12 13 14 15

18

17

16

19 20 21 22

E-056

9

7

5

3

1

10 8

6

4

2

Multimeter 

Connection

Condition

Specified 

Condition

E-070 (16) - 

E-056 (8)

Always

Continuity

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h. Using a digital multimeter, check for continuity between 

terminal C7 of BCM connector B-043 and terminal 6 of 
rear left combination light wire harness connector B-021 
according to the table below.
Standard Condition

i. Disconnect the body wire harness connector B-048 and 

engine compartment wire harness connector E-070.

j. Using a digital multimeter, check for continuity between 

terminal C7 of BCM connector B-043 and terminal 8 of 
rear left combination light wire harness connector E-056 
according to the table below.
Standard Condition

-

+

RT21350640

C1

C10 C11 C12 C13 C14 C15 C16 C17 C18

C2 C3 C4 C5

C6 C7 C8 C9

C20

C19

B-043

1

2

3

4

5

6

B-021

Multimeter 

Connection

Condition

Specified 

Condition

B-043 (C7) - 

B-021 (6)

Always

Continuity

-

+

RT21350650

C1

C10 C11 C12 C13 C14 C15 C16 C17 C18

C2 C3 C4 C5

C6 C7 C8 C9

C20

C19

B-043

E-056

9

7

5

3

1

10 8

6

4

2

Multimeter 

Connection

Condition

Specified 

Condition

B-043 (C7) - 

E-056 (8)

Always

Continuity

Repair or replace related wire harness and 
connector

NG

OK