Geely Emgrand X7. Manual part — 71

Conducted?

IR05

85

86

87

30

IR02

85

86

87

30

IR07

85

86

87

30

4

IR01

2

1

5

3

4

2

1

5

3

IR04

IR03

85

86

87

30

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

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

1

7

NL02-0062c

A. rotated ignition switch to OFF

position.

B.

Disconnect ECM harness
connector EM01.

C. Rotated ignition switch to ON

position.

D. Measure voltage between ECM

harness connector EM01 terminal
No.67 and a reliable ground.

E. Measure voltage between ECM

harness connector EM01 terminal
No.68 and a reliable ground.

ECM线束连接器

EM01

1

2

4

5

3

81

63

44

25

6

62

43

24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9

8

7

26

42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27

45

46

61 60 59 58 57 56 55 54 53 52 51 50 49 48 47

64

65

66

80 79 78 77 76 75 74 73 72 71 70 69 68 67

NL02-0033c

Standard value :11-14V

Is the voltage normal?

4

Inspect ECM ground circuit.

A. rotated ignition switch to OFF position .

B. Disconnect ECM harness connector EM01.

C. Measure resistance between ECM harness connector EM01 terminal No.2 of and a reliable

ground.

3

Inspect the ECM Power Supply Voltage.

No

Go to step 5

Yes

No

Inspect whether there are short circuits.
Replace the fuses.

Yes

ECMharness connectorEM01

283

D. Measure resistance between ECM harness connector EM01 terminal No.3 and a reliable

ground.

Standard Value: Less than 1 Ω

Is the resistance normal?

A. Inspect the battery voltage: standard value 11V-14V.

B. Inspect charging voltage of generator: standard value 11.5V-14.5V.

Normal?

6

Inspect the circuit from fuse EF16 to ECM.

A. rotated ignition switch to OFF position .

B. Disconnect ECM harness connector EM01.

C. Test continuity between ECM harness connector EM01 terminal No.67 and fuse EF10.

D. Measure resistance between ECM harness connector EM01 terminal No.67 and a reliable

ground.

Standard Value

Test Items

Specified Value

Continuity Between EM01 (67) and EF10

Continuity

Resistance Between EM01 (67) and A Reliable Ground

10 kΩ or higher

Normal?

7

Inspect the circuit from fuse IF33 to ECM.

A. rotated ignition switch to OFF position .

B. Disconnect ECM harness connector EM01.

C. Test Continuity between ECM harness connector EM01 No.68 terminal and fuse IF33.

D. Measure resistance between ECM harness connector EM01 terminal No.68 and a reliable

ground.

Standard Value

5

Inspect the charging system.

No

Circuit malfunction, repair or replace the
wiring harness.

Yes

No

ECM ground circuit malfunction. Repair
the faulty part.

Yes

No

Repair the faulty part.

Yes

Go to step 8

284

Test Items

Specified Value

Continuity Between EM01 (68) and IF33

Continuity

Resistance Between EM01 (68) and A Reliable Ground

10 kΩ or higher

Normal?

8

Use a fault diagnosis tester to confirm whether the DTC Code is stored again.

A. Connect fault diagnosis tester to the data link connector.

B. Rotated ignition switch to ON position .

C. Clear DTC code.

D. Start and run the engine at idle speed to warm up the engine for at least 5min.

E. Road test the vehicle for at least 10min.

F. Read control system DTC code again to confirm that the system has no DTC code output.

9 Replace

ECM

See 2.2.8.1 Replacement of Engine Control Module.

10

Carry out crankshaft position sensor self learn.

Refer to 2.2.7.11 "Crankshaft Position Sensor Learn".

11

Use fault diagnosis tester to confirm if DTC is stored again .

A. Connect fault diagnosis tester to the data link connector.

B. Rotated ignition switch to ON position

C. Clear DTC code.

D. Start and run the engine at idle speed to warm up the engine for at least 5 min.

E. Road test the vehicle for at least 10min.

F. Read control system DTC code again to confirm that the system has no DTC code output.

Next

Next

No

Refer to 2.3.6.3 Intermittent Fault
Inspection for intermittent fault.

Yes

No

Circuit malfunction, repair or replace the
wiring harness.

Yes

285

12 Troubleshooting

No

Refer to 2.2.7.3 Intermittent Fault
Inspection for intermittent fault.

Yes

286