Geely Emgrand X7. Manual part — 140

2.8.7.8 Cooling Fan always Runs at High Speed

Note: When this fault is present, it is recommended to carry out diagnostic when engine is
completely cooled down.

1

Confirm Fault Symptom

2

Inspect the signal of temperature sensor of engine coolant.

(a) Rotated ignition switch to "OFF" position .

(b) Connect fault diagnosis tester to diagnosis testing interface.

(c) Turn

off

A/C

switch.

(d) Turn ignition switch "ON" position.

(e) Select in sequence: engine/data list/ engine coolant temperature.

(f) Observe the temperature displayed on temperature sensor of engine coolant. When the engine

is completely cool, the temperature displayed shall be higher than ambient temperature.

Confirm if the temperature displayed is normal.

3

Inspect the circuit between the 86 socket of the high- or low-speed relay 2 and the
terminal 17 of ECM harness connector EM01.

(a) Rotated ignition switch to "OFF"

position .

(b) Dismantle high speed relay 2.

(c)

Disconnect ECM harness
connector EM01.

(d) Measure the resistance with a

multimeter.

NL11-2251b

ER03

8 5

86

8 7

30

3 0

87

8 6

8 5

ER05

3 0

8 7

86

85

ER06

30

87

87 a

8 6

8 5

ER11

ER08

ER

09

8 5

8 6

87

3 0

4

ER10

2

1

5

3

4

2

1

5

3

4

2

1

5

3

ER04

4

ER02

2

1

5

3

4

2

1

5

3

ER01

ER07

4

2

1

5

3

1

2

3

4

11

12

13

14

15

16

5

6

7

8

9

10

EF0

8

EF0

7

EF2

7

EF2

6

EF2

2

EF2

9

EF

0

3

EF

0

6

EF

0

9

EF2

5

EF1

7

EF1

6

EF1

5

EF

3

5

EF2

1

EF1

4

EF

01

EF

02

EF

04

EF

10

EF

1

1

EF1

8

EF2

4

8 6

Standard Value

Test Items

Specified Value

No

Refer to 2.2.7.20 DTC P0117 P0118 for coolant
temperature sensor or circuit malfunction.

Yes

No

559

High- or Low-Speed Relay 2 (86)-EM01(17)

Less than 1 Ω

Resistance Between High- or Low-Speed Relay
2 (86) and A Reliable Ground

10 kΩ or higher

Confirm whether the resistance conforms to standard value.

4

Inspect ECM working circuit.

(a) Inspect if ECM power circuit is normal.

(b) Inspect if ECM ground is normal.

5 Replace

ECM

6 Troubleshooting

Next

No

Repair the faulty part.

Yes

No

Repair the short to ground fault between the high- or
low-speed relay 2 socket #86 and ECM wire harness
connector EM01 terminal #17.

Yes

560

2.8.7.9 Thermostat Diagnostic

1

Dismantle the thermostat, see “2.8.8.4 Replacement of Thermostat”

2

Soak the thermostat in water and heat the water.

A. Inspect the thermostat switching on
temperature.

Standard value :82 (179 . 6 )

℃

℉

Is the thermostat switching on temperature
normal?

FE02-7814b

3

Inspect the thermostat valve lift range.

Standard valve lift:

Be 10 mm (0.39 in.) or more at 95

℃

(203°F)

Confirm whether the valve lift is normal.

A

FE02-7813b

No

Replace the thermostat, refer to 2.8.8.4
Replacement of Thermostat

Yes

No

Replace the thermostat, refer to 2.8.8.4
Replacement of Thermostat

Yes

Next

561

4

Inspect whether the thermostat is completely switched off at low temperature.

When the thermostat temperature is lower than 77 (171

℃

°F), Inspect whether the valve is

completely switched off.

5 Thermostat

is

normal.

No

Replace the thermostat, refer to 2.8.8.4
Replacement of Thermostat

Yes

562