Geely Emgrand X7. Manual part — 345
Geely Emgrand X7. Manual part - 345
2
Detect TCUpower supply circuit
See 3.5.7.8 P0603 P0604 P1604 P1701 P1703
3
Detect ON/OFF electromagnetic valveS4resistance
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 24 and
20 of the electromagnetic valve harness
connector J-4.
Standard resistant value :20.8Ω-23.2Ω
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 ON/OFF electromagnetic valve S4 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
1379
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.24
of the electromagnetic valve harness connector
J-4 and Terminal No.11 of the automatic control
module J-1.
D. Measure the resistance between Terminal No.20
of the electromagnetic valve harness connector
J-4 and Terminal No.15 of the automatic control
module J-1.
E. Turn the ignition switch to the ON position.
F. Measure voltage of electromagnetic valve
harness connector J-4No.24 terminal and reliable
grounding
自动变速器控制模块线束连接器
J-1
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
SL03-0034c
G. Measure the resistance between Terminal No.20 of the electromagnetic valve harness connector J-4 and
secure ground wire.
Results
Test Items
Standard Value
J-4 (24) — J-1(11)
Less than 3 Ω
J-4 (20) — J-1(15)
Less than 3 Ω
J-4 (24) — reliable grounding voltage value
0 V
J-4 (20) — reliable grounding resistance value
Less than 3 Ω
Does it conform to the standard value?
4 ReplaceTCU
Refer to3.5.7.8 replace automatic transmission control module
5
Go to automatic transmission fresh process.
Refer to3.5.7.4 Automatic transmission refresh process
No
Yes
Circuit malfunction, repair circuit.
Next
Auto-transmissioncontrol module harness connectorJ-1
1380
6
Use fault diagnosis tester to confirm if DTC is stored again.
A. Connect fault diagnosis tester to the data link connector.
B. Rotated ignition switch 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.
7 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
Next
Refer to 2.2.7.3 Intermittent Fault Inspection for
intermittent fault.
1381
3.5.7.28U0100U0121 U0146 U0415
1. DTC
description:
DTC U0100 Circling CAN information from the ECU is unavailable.
DTC U0121 Circling CAN information from the ABS is unavailable.
DTC U0146 Lost with Gateway communication
DTC U0415 The CAN signal of the TCU is out of the range or invalid.
Control area network (CAN) bus is used for sharing the vehicle system information in the control unit which is
connected with the bus. If the transmission control unit does not regularly receive specific information sent to the
CAN bus through the electronic control unit, the transmission control unit will trigger a DTC with respect to
communication.
2. Conditions For Setting DTC and The Fault Position :
DTC Code
DTC Detection Strategy
Conditions For Setting The DTC
(Control Strategy)
Fault Position s
U0100
U0121
U0146
U0415
Hardware Circuit Inspection
1.Ignition switch is in the “ON”
position
2.Communication signals lost,
logic signal
is error
1. ECU,TCU,
ABS
2. CAN
bus
3. Circuit
sketch
1382
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