Geely Emgrand X7. Manual part — 210

Step 4

Test sensor ECM internal low reference circuit.

(a) Rotated ignition switch to OFF

position .

(b) Disconnect the intake camshaft

position sensor wiring harness
connector EN15.

(c) Rotated ignition switch to ON

position .

(d) Measure resistance between the

intake camshaft position sensor
wiring harness connector EN15
terminal B and reliable ground.

Standard Resistance: Less than 3 Ω

(e) Connect the intake camshaft

position sensor wiring harness
connector EN15.

NL02-2123b

A

B

C

EN15 凸轮轴位置传感器线束连接器

B

Is the value specified value?

Step 5

Refer to 2.10.7.1 “Replacement of Camshaft Position Sensor” to replace the intake
camshaft position sensor.

Step 6

Inspect the sensor 5 V reference voltage circuit.

(a) Rotated ignition switch to OFF

position .

(b) Disconnect the intake camshaft

position sensor wiring harness
connector EN15.

(c)

Disconnect ECM harness
connector EN01.

(d) Measure resistance between

intake camshaft position sensor
wire harness connector EM15
terminal C and ECM wire
harness connector EM01 terminal
70. Inspect whether there is
short-circuit situation.

NL02-2122b

A

B

C

EN15 凸轮轴位置传感器线束连接器

C

Next

Go to step 12

No

Go to step 8

Yes

EN15 camshaft position sensor harness

connector

EN15 camshaft position sensor harness

connector

839

(e)

Measure voltage between
camshaft position sensor harness
connector EN15 terminal No.C
and a reliable ground. Inspect
whether the circuit is short to
power supply.

(f)

Measure voltage between
camshaft position sensor harness
connector EN15 terminal No.C
and a reliable ground. Inspect
whether the circuit is open to
power supply.

NL02-2125b

EN01 发动机控制模块线束连接器

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

70

Test Items

Standard Value

EN15(C)-EN01(70) resistance

Less than 1 Ω

EN15(C)-reliable grounding resistance

10 kΩ or higher

EN15(C)-reliable grounding voltage

0V

Execute next step as per normal.

Step 7

Inspect Sensor Signal Circuit

(a) Rotated ignition switch to OFF

position .

(b) Disconnect the intake camshaft

position sensor wiring harness
connector EN15.

(c)Disconnect ECM harness connector

EN01.

(d)

Measure resistance between
intake camshaft position sensor
wire harness connector EM15
terminal A and ECM wire harness
connector EM01 terminal 77.
Inspect whether there is
short-circuit situation.

NL02-2124b

A

B

C

EN15 凸轮轴位置传感器线束连接器

A

Next

Repair the faulty part. Go to step

EN01 engine control module harness

connector

EN15 camshaft position sensor harness

connector

840

(e)

Measure voltage between
camshaft position sensor harness
connector EN15 terminal No.A
and a reliable ground. Inspect
whether the circuit is short to
power supply.

(f)

Measure voltage between
camshaft position sensor harness
connector EN15 terminal No.A
and a reliable ground. Inspect
whether the circuit is open to
power supply.

NL02-2126b

EN01 发动机控制模块线束连接器

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

77

Test Items

Standard Value

EN15(A)-EN01(77) resistance

Less than 1 Ω

EN15(A)-reliable grounding resistance

10 kΩ or higher

EN15(A)-reliable grounding voltage

0V

Are the values specified values?

Step 8

Inspect sensor ECM internal low reference circuit.

(a) Rotated ignition switch to OFF

position .

(b) Disconnect the intake camshaft

position sensor wiring harness
connector EN15.

(c)

Disconnect ECM harness
connector EN01.

(d) Measure resistance between

intake camshaft position sensor
wire harness connector EM15
terminal B and ECM wire
harness connector EM01 terminal
74. Inspect whether there is
short-circuit situation.

NL02-2123b

A

B

C

EN15 凸轮轴位置传感器线束连接器

B

No

Repair the faulty part. Go to step 12

Yes

EN01 engine control module harness

connector

EN15 camshaft position sensor harness

connector

841

(e) Measure resistance between

intake camshaft position sensor
wire harness connector EN15
terminal B and reliable
grounding. Inspect whether there
is short-circuit situation.

NL02-2127b

EN01 发动机控制模块线束连接器

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

74

Test Items

Standard Value

EN15(B)-EN01(18) resistance

Less than 1 Ω

EN15(B)-reliable grounding voltage

0V

Execute next step as per normal.

Step 9

Inspect whether the intake camshaft signal plate is normal.

Step 10

Inspect the ECM Power Supply Circuits.

(a) Inspect whether ECM power supply circuit is normal.

(b) Inspect whether ECM ground circuit is normal.

Step 11

Replace ECM

Step 12

Use scan tool to confirm whether the DTC Code is stored again.

Next

No

Repair the faulty part.

Yes

No

Repair the faulty part.

Yes

Next

EN01 engine control module harness

connector

842