Geely Emgrand X7. Manual part — 218

D. Start and run the engine at idle speed to warm up the engine for at least 5min.

E. Road test the vehicle for at least 10min.

F. Read control system DTC code again to confirm that the system has no DTC code output.

9 Replace

ECM

See 2.12.8.1 Replacement of Engine Control Module.

10

Carry out crankshaft position sensor self learn.

Refer to 2.12.7.11 "Crankshaft Position Sensor Learn".

11

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 5 min.

E. Road test the vehicle for at least 10min.

F. Read control system DTC code again to confirm that the system has no DTC code output.

12 Troubleshooting

No

Refer to 2.2.7.3 Intermittent Fault
Inspection for intermittent fault.

Yes

Next

Next

No

Refer to 2.12.6.3 Intermittent Fault
Inspection for intermittent fault.

Yes

871

2.12.7.44 DTC P0571

1. DTC

description:

DTC P0571

The switch state of the brake lamp is not changed when braking.

DTC P0504

Brake Lamp Switch Relativity Malfunction

Disconnect the brake light switch signal. the vehicle braking, system enters the diagnostic window.
After multiple braking, DTC code appears. Engine running smooth, the vehicle can be driven.

2. Conditions For Setting DTC and The Fault Location:

DTC
Code

DTC Detection
Strategy

Conditions For Setting The DTC
(Control Strategy)

Fault Locations

P0571

P0504

ECM receives the
brake light switch
signal.

1. Brake Light Switch Signal

Disconnected.

2. Vehicle braking, system enters

the diagnostic window.

3. DTC codes appear after

repeatedly braking.

1. Brake Light

Switch Circuit

2. Brake Lights

Switch

3. ECM

3. Circuit

figure

69

2

1

4

3

EN01

33

EN01

BL

BR

发
动
机
控
制
模
块

IF28

IF03

制动灯开关

接制动灯

IG2

IP+B

NL02-2011e

4. Diagnostic

Steps:

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.

Brake lamp

switch

Connect to

brake lamp

Engi

ne

co

ntr

ol

modu

le

872

1

Inspect brake lamps are working properly.

2

Inspect continuity between brake light switch wiring harness connector IP56 and
ECM harness connector EN01.

A. rotated ignition switch to OFF

position.

B.

Disconnect ECM harness
connector EN01.

C. Press the brake pedal.

D. Measure ECM harness connector

EN01 terminal No.69 and 33
voltage.

Standard Voltage: 11-14 V

Confirm whether the voltage is normal.

NL02-2012e

EN01 发动机控制模块线束连接器

1

2

4

5

3

81

63

44

25

6

62

43

24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9

8

7

26

42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27

45

46

61 60 59 58 57 56 55 54 53 52 51 50 49 48 47

64

65

66

80 79 78 77 76 75 74 73 72 71 70 69 68 67

69

33

3

Repair circuit between brake light switch wiring harness connector IP56 and ECM
harness connector EN01.

A. Repair circuit between brake light switch wiring harness connector IP56 and ECM harness

connector EN01.

B. Confirm the repair is completed.

4 Troubleshooting

Next

Yes

Refer to 2.2.8.1 Replacement of Engine
Control Module to replace ECM.

No

No

Refer to11.4.7.8 Brake Lamp Inoperation.

Yes

EN01 engine control module harness

connector

873

2.12.7.45 DTC P0601 P0602 P1516 P2101

1. DTC

description:

DTC P0601

ECM Processor Malfunction

DTC P0602

ECM Processor Malfunction

DTC P1516

Diagnostic error for second order of driving electronic throttle

DTC P2101

Diagnostic error for static state of driving electronic throttle

ECM Internal Program Errors.

2. Conditions For Setting DTC and The Fault Location:

DTC
Code

DTC Detection
Strategy

Conditions For Setting The DTC
(Control Strategy)

Fault Locations

P0601 ——

P0602

——

P1516

In a steady-state condition, the throttle
expected by the system is located

The position is more different from the
actual throttle position.

P2101

ECM Internal
Monitoring

In a steady-state condition, the throttle
expected by the system is located

The position is more different from the
actual throttle position.

ECM

3. Diagnostic

Steps:

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

Inspect whether there is any control system DTC codes other than DTC P0601, P0602,
P1516 and P2101.

A. Connect fault diagnosis tester to the datalink connector.

B. Rotated ignition switch to ON position

C. Switch on fault diagnostic apparatus power supply

874