Geely Emgrand X7. Manual part — 333

8 Troubleshooting

5. Maintenance

guide:

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.

1331

3.5.7.18 P0962 P0963

1. DTC

description:

DTC P0962 electromagnetic valveS9 high current (short circuit)

DTC P0963 electromagnetic valveS9low current(open circuit)

The transmission control unit (TCU) uses a variable pressure electromagnetic valve to regulate the hydraulic
pressure. The hydraulic system controls the clutch in the transmission to realize the torque transmission.

The transmission control unit (TCU) can control a certain amount of pressure by adjusting the current of the
electromagnetic valve to enter the clutch and the transmission of the clutch torque is directly related to the current
of the electromagnetic valve.

During operation, the transmission control unit evaluates the current actually delivered to the electromagnetic
valve and compares with the expected. If there is no pre-defined parameter currently, the DTC is set to display
abnormal load of the transmission control unit.

2. Conditions for setting DTC and the fault position:

DTC Code

DTC Detection

Strategy

Conditions For Setting The DTC

(Control Strategy)

Fault Position s

P0962

Feed back message of
electromagnetic
valveS9 exist short
circuit

P0963

Feed back message of
electromagnetic
valveS9 exist open
circuit

1. Ignition switch is in the “ON”

position.

2. Electromagnetic valve power on

3. TCU power supply voltage is normal

1. Electromagnetic

valve

2. Electromagnetic

valve circuit

3. TCU

3. Circuit

sketch

1332

T

C

U

电磁阀

换挡器

档位开关

LEVER

REVERSE

START

VBS5

VBS6

VBS7

V

BS8

VBS9

VBS1

0

O

n

O

ff

1

O

n

O

ff

2

O

n

O

ff

3

O

n

O

ff

4

EMM

INPUT

SHAFT

SPEE

D

SENSOR

OU

TPUT

SHAFT

t

SPE

ED

SENSOR

25

26

10

11

9

8

13

12

24

23

22

21

20

7

6

5

4

3

2

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

J-4

1

18

8

1

3

2

12

14

4

11

12

9

10

15

2

1

4

3

6

5

7

7

J-5

5

16

17

J-5

4

J-5

1

J-5

6

J-5

2

J-5

3

4

11

10

10

15

3

CAN H

启动继电器

倒车信号

输出

主继电器

JF-1

IG2

JB-2

CAN L

10

20

J-3

J-1

J-3

J-2

J-2

J-3

J-3

J-3

J-1

8

J-3

J-3

J-3

J-3

J-3

J-3

J-3

J-3

J-1

J-1

J-1

J-1

J-1

J-1

J-1

J-1

J-1

J-1

J-1

J-1

IF36

NL03-2005c

4. Diagnostic

procedures:

Note: Before carrying out this diagnosis step, observe the data list on fault diagnosis tester and analyze the
accuracy of the data, as these will help with quick diagnosis.

1

Read the fault code again after clearing away the fault code to check if fault codes, except DTC
P0962 and P0963 exist in the control system.

A. Connect fault diagnosis tester to the datalink connector.

B. Rotated ignition switch to ON position

C. Switch on fault diagnostic device power supply

D. Clear DTC code.

E. Reset reading fault code, and check if DTCs meet setting condition of fault code in current

DTC Codes Shown

To Step

DTC P0962 P0963

Yes

DTCs other than DTCs P0962 and P0963

No

Gears switch

Main relay

JF-1

Reverse output

signal

Start relay JB-2

Shifter

Electromagnetic

valve

1333

2

Detect TCU power supply circuit

See 3.5.7.8 P0603 P0604 P1604 P1701 P1703

3

Detect S9electromagnetic valve resistance

A. Turn the ignition switch to the OFF position.

B. Disconnect the harness connector J-4 of the

electromagnetic valve.

C. Measure the resistance between Terminals 6 and

1 of the electromagnetic valve harness connector
J-4.

Standard resistant value :4.11Ω-4.17Ω

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 S9electromagnetic valve circuit

No

Yes

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

Next

No

Yes

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

Electromagnetic valve harness connectorJ-4

1334