Geely Emgrand X7. Manual part — 101

2.5.7.16 DTC B059

Fault diagnosis code Descriptions

B059

No request from ECM has been received.

Circuit diagram:

NL02-2300b

3 IP25

2 IP24

5 IP24

8 IP24

1 IP24

4 IP24

46 EN01

75 EN01

芯片防盗模块

ECM

IMMOREQ

KW2000

GND

GND

IG2

VBATT

R-LINE

W-LINE

5 IP43

IP25

1

2 IP43

IP25

2

IP43

4

IP43

3

10A

IF

35

10A

IF0

2

IP+B

IG2

15A

IF

06

ACC

IP49

2

BCM

KEY LIGHT

防盗天线

Diagnostic Steps:

1

Inspect engine chip anti-theft module R line circuit.

(a) Rotated ignition switch to "OFF"

position .

(b) Disconnect the engine chip

anti-theft module wiring harness
connector IP24.

(c) Disconnect the engine control

module wiring harness connector
EM01.

(d) Measure the continuity between

IP24 terminal No.5 and EM01
terminal No.46..

Standard Resistance: Less than 1 Ω

NL02-2189b

1

2

4

6

8

3

5

7

IP24 发动机防盗控制模块线束连接器1

Confirm if the resistance conforms to standard value.

Immobilizer

antenna

Chip anti-theft module

IP24Engine anti-theft control module

harness connector1

403

2

Inspect engine chip anti-theft module power supply and grounding circuit.

(a) Repair engine chip anti-theft module power supply circuit.

(b) Repair engine chip anti-theft module grounding circuit.

Confirm whether the system is normal or not.

3

Replace Engine Chip Anti-theft Module.

(a) Replace engine chip anti-theft module and refer to 2.5.8.2 "Replacement of Engine Anti-theft

System Control Module".

(b) Refer to 2.5.7.9 “Replacement of Programming after Anti-theft Module” to match the engine

anti-theft system.

Confirm whether the system is normal or not.

4

Repair ECM Power Supply and grounding Circuits.

(a) Repair ECM power supply circuit.

(b) Check ECM grounding circuit.

Confirm whether the system is normal or not.

5 Replace

ECM

(a) Replace ECM and refer to 2.2.8.1 "Replacement of Engine Control Module".

(b) Match engine anti-theft system . Refer to:2.5.7.10 replace programming after ECM.

Confirm the completion of repair.

6

The system is normal.

Next

Yes

The system is normal.

No

Yes

The system is normal.

No

Yes

The system is normal.

No

No

Repair or replace the harness.

Yes

404

2.5.7.17 Engine Anti-theft System Warning Lamp Flashing

Circuit diagram:

NL02-2191b

3 IP25

2 IP24

5 IP24

8 IP24

7 IP24

3 IP24

1 IP24

4 IP24

IP02

31

46 EN01

75 EN01

IP12

7

芯片防盗模块

组合仪表

诊断口

ECM

IMMOREQ

KW2000

GND

GND

LED

IG2

BATT

R-LINE

W-LINE

K-LINE

Gr/P

W/

G

Gr/O

W

5 IP43

IP25

1

2 IP43

IP25

2

10A

IF

3

5

10A

IF

02

IP+B

IG1

防盗天线

Diagnostic Steps:

1

Inspect the fuse IF02 and IF35.

(a) Inspect if the fuse IF02 and IF35

is blown.

Fuse Rating: IF02 rating is 10 A,
IF35 rating is 10 A

NL02-2192b

IR05

8 5

8 6

8 7

3 0

IR02

8 5

8 6

8 7

30

IR07

8 5

8 6

8 7

3 0

4

IR01

2

1

5

3

4

2

1

5

3

IR04

IR03

8 5

8 6

8 7

3 0

IF 1 4

IF
2

9

IF
3

2

IF
3

3

IF
3

4

IF
3

5

IF
1

8

IF 2 0

IF 11

IF
2

5

IF
2

6

IF
2

7

IF
2

5

IF
0

1

IF
0

2

IF

0

2

IF

3

5

IF
0

3

IF
0

4

IF
0

5

IF
0

6

IF
2

6

IF
2

7

IF
2

3

IF

3

0

IF

1

2

IF

1

6

IF

17

2

Repair the circuit of the fuses IF02 and IF35.

(a) Inspect the fuse IF02 circuit, repair short-circuit fault.

(b) Inspect the fuse IF35 circuit, repair short-circuit fault.

No

Go to step 3

Yes

Immobilizer

antenna

Chip anti-theft module

Combination

instrument

Diagnostic

port

405

(c) Replace the fuses with rated current.

Can the vehicle start?

3

Inspect engine anti-theft system control module’s grounding.

(a) Measure resistance between

engine anti-theft system control
module IP24 terminal No.2 or
IP25 terminal No.3 and the body
ground with a multimeter and
determine the circuit continuity.

Standard Resistance: Less than 1 Ω

Does the resistance conform to
standard value?

NL02-2189b

1

2

4

6

8

3

5

7

IP24 发动机防盗控制模块线束连接器1

NL02-2190b

IP25 发动机防盗控制模块线束连接器2

1

2

3

4

Repair the engine anti-theft system control module grounding circuit.

(a) Repair circuit between the engine anti-theft system control module connector IP24 terminal

No.2 or IP25 terminal 3 and body ground open fault.

Can the vehicle start?

Yes

Go to step 5

No

Yes

The system is normal.

No

IP24 engine anti-theft control module

harness

connector1

IP25 engine anti-theft control module harness

connector2

406