Geely Emgrand X7. Manual part — 138

9

Replace cooling fan high-low speed relay 1.

10

Inspect high-speed or low-speed relay 1 coil power supply.

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

(b) Dismantle the low-speed cooling fan relay 1.

(c) Rotated ignition switch to "ON" position .

(d) Measure voltage between high- or low-speed cooling fan relay 1 terminal No.85 and a

reliable ground.

Standard Voltage: 11-14 V

Confirm whether the voltage conforms to standard value.

11

Inspect high-speed or low-speed relay control circuit.

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

(b) Disconnect ECM harness connector EM01.

(c) Dismantle the high- or low-speed cooling fan relay.

(d) Test the continuity between the cooling fan high-speed or low-speed relay terminal No.86

and EM01 terminal No.65.

(e) Measure voltage between low speed cooling fan relay terminal No.86 and a reliable ground.

Inspect whether the circuit is short to power supply.

Standard Value

Test Items

Specified Value

High- or Low-speed relay (86)-EM01 (65)

Less than 1 Ω

Resistance Between high- or low-speed Relay
(86) and Reliable Ground

10 kΩ or higher

Confirm whether the measured value conforms to the standard value.

No

Open circuit between high- or low-speed relay 1 terminal
No.85 and fuse EF21,and replace the underhood fuse relay
box if necessary.

Yes

No

Inspect and repair the faulty locations between the
high-speed or low-speed relay 1 terminal No.87 and the
cooling fan wiring harness connector CA09 terminal No.1.

Yes

551

12

Inspect ECM working circuit.

(a) Check if ECM power circuit is normal.

(b) Inspect if ECM ground is normal.

13 Replace

ECM

14 Troubleshooting

Next

No

Repair the faulty part.

Yes

No

Open circuit between high- or low-speed relay terminal
No.86 and EM01 terminal No.65.

Yes

552

2.8.7.6 Cooling Fan 1 Runs At High Speed (Fan 2 Does not Run)

1

Confirm Fault Symptom

2

Use the “Action Test” of fault diagnosis tester to drive the fan low-speed.

Is the High-Speed relay working?

3

Inspect the voltage between the sockets #85 and #86 of the high-speed relay.

(a) Rotated ignition switch to "OFF"

position .

(b) Dismantle high-speed relay.

(c) Rotated ignition switch to "ON"

position .

(d) Connect fault diagnosis tester to

the diagnostic interface.

(e) Select

in

sequence:

Engine/Action Test/Fan High
Speed.

NL11-2262b

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

8 5

(f) Measure the voltage between the #85 and #86 sockets of the high-speed relay with

multimeter.

(e) Standard Voltage: 11-14 V

Confirm if the voltage conforms to standard value.

4

Repair the underhood Fuse Block Open Circuit fault.

5

Inspect the voltage on the high-speed relay socket #30.

Yes

Replace high-speed relay

No

Yes

Go to step 5

No

No

553

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

(b) Dismantle high-speed relay.

(c) Measure the effective grounding voltage between the socket #30 of the high-speed relay and

the vehicle body with multimeter.

(e) Standard Voltage: 11-14 V

Confirm if the voltage conforms to standard value.

6

Check the open circuit fault between the high-speed relay terminal #87 and the fan
motor 2.

7 Troubleshooting

Yes

No

Check fuse relay box. If necessary, replace
it.

Yes

554