Geely Emgrand X7. Manual part — 327

2

Detect the reference voltage of the input shaft speed sensor.

A. Turn the ignition switch to the OFF position.

B. Disconnect the harness connector J-4 of the

electromagnetic valve.

C. Turn the ignition switch to the ON position.

D. Measure the voltage between terminals 8 and 9 of

the electromagnetic valve harness connector J-4.

Standard voltage values: is more than10V

电磁阀线束连接器 J-4

1

8

20

14

9

15

10

16

11

17

12

18

13

19

2

21

3

22

4

23

5

24

6

25

7

26

SL03-0036c

Does it conform to the standard value?

3

Detect the signal voltage of the input shaft speed sensor.

A. Turn the ignition switch to the OFF position.

B. Disconnect the harness connector J-4 of the electromagnetic valve.

C. Turn the ignition switch to the ON position.

D. Measure the voltage between Terminals 8 and 11 of the electromagnetic valve harness connector J-4.

Standard voltage: 4.9-5.1 V

Does it conform to the standard value?

4

Detect the circuit of the input shaft speed sensor.

No

Yes

Refer to3.4.7.6 fault diagnosis code (DTC)
chapter index

No

Yes

Refer to 3.4.7.8 Replacement of automatic

transmission control module to replace TCU.

No

Yes

Refer to 3.4.7.8 replacement of automatic
transmission control module to replace TCU.

Electromagnetic valveharness connectorJ-4

1307

A. Rotated ignition switch to OFF position.

B. Disconnect the harness connector J-4 of the

electromagnetic valve.

C. Measure the resistance between terminal No.8of

the electromagnetic valve harness connector J-4
and Terminal No.12 of the automatic control
module J-3.

D. Measure the resistance between terminal 9 of the

electromagnetic valve harness connector J-4 and
Terminal No.2 of the automatic control module
J-3.

E. Measure resistance of electromagnetic valve

harness connector J-4 No ,11 terminal and
Automatic transmission control
moduleJ-3Terminal No.3

自动变速器控制模块线束连接器

J-3

1

11

2

12

3

13

4

14

5

15

6

16

7

17

8

18

9

19

10

20

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F. Turn the ignition switch to ON position.

G. Measure the voltage between Terminal No.8of the electromagnetic valve harness connector J-4 and secure

ground wire.

H Measure voltage of electromagnetic valve harness connector J-4 terminal No.9 and reliable grounding

Measure voltage of electromagnetic valve harness connector J-4 No. 1 terminal No. 1 and reliable grounding

Results

Test Items

Standard value

J-4(8) — J-3(12)

Less than 3 Ω

J-4(9) — J-3(2)

Less than 3 Ω

J-4(11)— J-3(3)

Less than 3 Ω

J-4(8) — Reliable grounding voltage value

O V

J-4(9) — Reliable grounding voltage value

0 V

J-4(11) — Reliable grounding voltage value

O V

Does it conform to the standard value?

5

Detect the output waveform of the input shaft speed sensor.

No

Yes

Circuit malfunction, repair circuit.

Auto-transmissioncontrol module harness connectorJ-3

1308

A. Turn the ignition switch to the OFF position.

B. Connect an oscilloscope to terminals No.3 and

12 of the harness connector J-3 of the automatic
transmission control module.

C. Turn the ignition switch to the ON position.

D. Start up the engine and increase the engine RPM

to observe whether the waveform on the
oscilloscope is as shown in the right figure.

SL03-0038c

Is the waveform consistent with the right figure?

6 Replace

TCU

Refer to3.5.7.8 replace automatic transmission control module

7

Go to automatic transmission fresh process.

Refer to3.5.7.4 Automatic transmission refresh process

8

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

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

B. Rotated ignition switches 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. Read control system DTC code again to confirm that the system has no DTC code exported.

No

Yes

Replace auto-transmission assembly, refer to3.4.7.6
replace auto-transmission assembly

Next

Next

1309

9 Troubleshooting

5. Maintenance

guide:

Replace Automatic transmission control module, refer to3.5.7.8 replace automatic transmission control module

Replace Automatictransmission assembly; refer to3.5.7.6 Automatictransmission assembly replacement

Yes

No

Refer to 2.2.7.3 Intermittent Fault Inspection for
intermittent fault.

1310