Geely Emgrand X7. Manual part — 439

Confirm the completion of repair.

16

The system is normal.

Next

1755

8.3.7.5 A/C blower do not work

Circuit diagram:

See Electrical Appliance schematic diagram 2.

Diagnostic steps:

1

Inspect the blower relay (indoor fuse relay box R03).

A． Perform the maintenance procedures according to

the following list of symptoms.

NL08-2021b

IR05

8 5

8 6

8 7

3 0

IR02

8 5

8 6

8 7

3 0

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 1 3

IF 11

IF
2

5

IF
2

6

IF
2

7

IF
2

0

IF
0

1

IF
0

2

IF
0

3

IF
0

4

IF
0

5

IF
0

6

IF
2

1

IF
2

2

IF
2

3

IF

3

0

IF

1

2

IF

1

6

IF

1

7

Symptoms

Suspected fault part

Maintenance scheme

Terminal 30 of the blower relay
has no battery voltage.

The fuse IF17 (40A) is blown.
harnesses fault

Repair the harnesses.
Replace fuseIF17

Terminal 85 of the blower relay
has no battery voltage.

The fuse IF25 (10A) is blown.
harnesses fault

Repair the harnesses.
Replace fuseIF25

Terminal of the blower
assembly IP11-1 has no battery
voltage.

The blower relay faults.
harnesses fault

Replace blower relay
Repair the harnesses.

Terminal 86 of the blower relay
is in bad contact with ground.

harnesses fault
Ground point G8 faults.

Repair the harnesses.
Repair the fault of poor grounding of
the ground point G8

The resistor between the
terminals 86 and 85 of the
blower relay does not accord
with the standard.

The blower relay faults.

Replace blower relay

B． Confirm the completion of fault maintenance.

Does the blower operate normally?

No

Yes

The system is normal.

1756

2

Repair the circuit between the blower relay and the blower.

(a) Turn the ignition switch to OFF position.

(b) Disconnect blower harness connector IP11.

(c) Inspect connection situation between blower

relay terminal 87 and blower harnesses
connector IP11 terminal 1.

Standard Resistance: Less than 1 Ω

(d) Make sure that the circuit between blower relay

terminal 87 and blower harnesses connector
IP11 terminal 1 is normal.

Does the blower operate normally?

1

2 3

6 5 4

鼓风机线束连接器

IP11

NL08-2011b

3

Inspect the voltage of the A/C control module terminal.

(a) Start

the

engine.

(b) Pressed volume button on the A/C control panel

(c) Use multimeter to measure voltage of A/C control module terminal.

(d) Standard voltage of each air volume gear is shown in table.

Air quantity bar shows

Voltage (V) at manual mode blower end

1 3.65

2 4.85

3 7.2

4 12

Is voltage the Standard Value?

4

Repair the circuit of the A/C control module and the blower.

No

Yes

The system is normal.

No

Yes

The system is normal.

IP11 blower harness connector

1757

(a) Turn the ignition switch to OFF position.

(b) Inspect connection situation between A/C control

module harnesses connector terminal IP26-1,
IP26-4, IP26-2, IP26-6, IP27-3 and blower
harnesses connector terminal IP11-5, IP11-4,
IP11-3, IP11-2.

(c) Make sure that circuit between A/C control

module harnesses connector t erminal IP26-1，
IP26-4,IP26-2 and blower harnesses connector
terminal IP11-5,IP11-4,IP11-3，IP11-2 is normal.

Standard Resistance: Less than 1 Ω

Does the blower operate normally?

NL08-2019b

空调控制模块线束连接器

IP27

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15 16

空调控制模块线束连接器

IP26

3

2

1

6

5

4

1 2 3

6 5 4

鼓风机线束连接器

IP11

5

Inspect the A/C control module circuit.

(a) Inspect power supply and grounding circuit of A/C control module.

(b) Make sure A/C control module power supply and grounding are connected normally.

Does the blower operate normally?

6

Replace A/C control module.

(a) Replace A/C control module refer to 8.2.8.1 A/C control panel replacement.

Does the blower operate normally?

No

Yes

The system is normal.

Yes

The system is normal.

No

Yes

The system is normal.

No

IP11 blower harness connector

IP26 air conditioningcontrol module harness

connector

IP27 air conditioningcontrol module harness

connector

1758