1 2 3 45-124replacing air cleaner, always ensure that no dirt enters air duct, never
use ungraded air cleaner.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect
two meter pens with regulator pin 1, 4 and 2, 3 respectively. Rated
resistance between 1, 4 and between 2, 3 at 20°C should be about
43.2 ohm.
9. Fuel injector
(1) ECU energizes coil of fuel injector to form magnetic field force. When magnetic field force increases to
sufficient to overcome pressure of return spring, gravity of needle valve and resultant force of frictional force,
needle valve begins to rise, oil injection process begins. When oil injection impulse cuts off, pressure of return
spring closes needle valve again.
Symptom
Poor idle speed, poor speedup, failure to start
(difficult to start)Possible cause
Since lack of maintenance, gum builds up in
fuel injector and leads to malfunction
Repair precautions:
1. there are many kinds of fuel injector, their appearance is the same, mountable fuel injector may not be the
exactly suitable one, part number of fuel injector used in repair must be consistent with original fuel injector, wrong
replacement is not permitted;
2. To facilitate installation, it is recommended to apply silicon free clean engine oil on O ring surface at upper
part connecting distributing pipe of fuel oil. Pay attention not to let engine oil contaminate fuel injector inside and
jet orifice;
3. To remove and reinstall fuel injector, O ring must be replaced, here do not damage sealing surface of fuel
injector;
4. if fuel injector has two slots, when mount buckle clamp, pay attention not to clamp in the wrong position,
refer to mounting position of original parts;
5. It is strictly prohibited to remove strainer, clean or replace strainer at discretion; 6. after removal, ensure
cleanness of fuel injector holder, avoid foreign matter ingressing the cylinder.
Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect two meter pens with fuel injector pins
respectively, rated resistance at 20°C is 11-17 ohm.
Suggestion: use special cleaning analyzer to conduct thorough cleaning for the fuel injector per 20000km.
10. Electric fuel pump
(1) Fuel pump is a vane pump driven by DC motor, is placed in oil tank, immersed in fuel oil, utilizes fuel oil
for heat dissipation and lubrication. Storage battery supplies power to electric fuel pump via oil pump relay, the
relay switches on electric fuel pump circuit only at the time of startup and during operation of engine. When engine
shuts down due to accident, fuel pump stops running automatically.Symptom
Large running noise, poor speedup, failure to start
(difficult to start)Common cause
1. Gum builds up to form insulating layer;
2. Oil pump bushing is blocked with armature;
3. Fuel level sensor assembly is corroded etc.Engine EFI System-Engine EFI System
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
255-128 4. Eliminate fault code either by diagnosis instrument or manually. Manual operation method, specific
procedure: use engine data K-line (namely 9 # terminal of diagnostic interface) earth twice, earthing time is more
than 2. 5 s at each time.
Fault code tableFaulty part
No fault
Electronic control unit (unit) fault
Knocking control zero test
Knocking sensor
Storage battery voltage
Intake pressure sensor
Throttle position sensor
Idle speed control valve
Coolant temperature sensor
Intake temperature sensor
Engine maximum speed overrun
Fuel injector 1
Fuel injector 2
Fuel injector 3
Fuel injector 4
Fan relay
Oxygen sensor
Air fuel ratio control correction coefficient
? self-learning value 1
? self-learning value 2
? self-learning value 3
Fault caution light
Canister control valve
Air conditioner condenser temperature sensor
Phase sensorFault code
11
34
1
15
38
16
14
61
19
18
33
22
23
24
21
42
17
31
35
36
37
45
25
13
43Fault lamp
OFF
ON
OFF
ON
OFF
ON
ON
ON
ON
ON
OFF
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
ONFault type
-
2
-
2
2
1
1
1
1
1
2
1
1
1
1
1
1
2
2
2
2
1
1
1
1
Fault type: 1-open circuit 2-signal overrun
No. 18 to 21 in the table refers to air fuel ratio correction coefficient,?=actual air quantity/air need for
combustion, "? self-learning value" is also called learning air fuel ratio control value.Engine EFI System-
Engine EFI System
III. Troubleshooting:1.Whether power supply is normal or not.
2. Increase mobile phone output volume.
3. Confirm whether mobile phone interface line is correct, (replace
with new mobile phone interface line).
4. When mobile phone works, confirm whether there is relay
closing sound in hands-free telephone box.
5. If there is relay closing sound, check whether anything is wrong
with socket drop-out line.
Adjust mobile phone output volume.
Check receiving signal of mobile phone. No. Symptom Possible cause
1
2
3No voice can be heard from
hands-free telephone
Loudspeaker sound is light
Connection is interruptedOn Board Vehicle Telephone-On-board Vehicle Telephone5-130
Terminal No.
B1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25G
G
RY
Br
GB
GW
BLW
Br
RB
RB
YB
YB
RBL
RBL
GBL
R
RW
RW
BR
WR
BL
W
WB
BLB
R
BLB
WB
BLY
WY
RBHazard lamp power supply
Hazard lamp power supply
Dome lamp
Wiper motor (INT)
GND
GND
Right turn light and its indicator lamp
Left turn light and its indicator lamp
IG2
Wiper switch 3#Head light relay 85 #Head light relay 85 #Rear air window defrost and indicator lamp
Rear air window defrost and indicator lamp
Rear air window defrost power supply
Rear air window defrost power supply
GND
Horn relay 85 #Electric glass frame power supply
GND
GND
Fastener power supply
Right front, right rear, left rear fastener
Right front, right rear, left rear fastener
Left actuator
Front left glass regulator
Front left glass regulator
GND
Front right glass regulator
Front right glass regulator
Glass power supply
Rear left glass regulator
Rear left glass regulator
GND
Rear Right glass regulator
Rear Right glass regulator
Left actuatorConductor color Terminal definitionCReplacement ( 1 ) Remove dashboard subassembly (refer to trim)
( 2 ) Remove two bolts5-136Centralized Controller System-
Function Inspectior
Chapter 17 Moonroof Assembly (Optional)Component ViewII. Inspection of sunroof Troubleshooting formSunshade sub-assy Sunroof motorBracket sub-assy.Sunroof frameSunroof glass bracketSunroof glass sealSunroof glassInterior & Exterior Trim and Accessory -Moonroof Assembly (Optional)6-40Possible causes
1. Power relay
2. Instrument fuse
3. Sunroof switch
4. Sunroof lock switch
5. Sunroof motor
6. Sunroof guide rail
7. Wire harness
1. Sunroof lock switch
2. Sunroof motor
3. Sunroof guide rail
4. Wire harnessSymptom
Sliding sunroof system doesn't work.
Sling sunroof system gets stuck (e.g.
foreign matter like gravel caught in motor)
