Geely EC718, EC718RV, EC715, EC715RV. Manual part — 171
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 171
–
Full-throttle Air-Conditioning Off Mode: Ensure the vehicle
dynamic.
Engine speed is less than 3,600 rpm
No TPS fault
TPS is greater than 105%, and since the last time full-
throttle air-condition-off the TPS is less than this value
–
Engine Speed Too High Air-Conditioning Off Mode: Protect
the Air-Conditioning system.
A/C off, the engine speed is less than 4,900 rpm, the
compressor is allowed to start.
A/C on, the engine speed is greater than 5,100 rpm, the
compressor is off.
–
Engine Coolant Temperature Too High Air-Conditioning Off
Mode: Protect the engine.
A/C off, when the coolant temperature is less than 106°C
(223°F), the compressor is allowed to start.
A/C on, when the coolant temperature is higher than 108°C
(226°F), the compressor is off.
–
Air-Conditioning Evaporator Temperature Too Low Air-
Conditioning Off Mode: Protect the Air-Conditioning
system.
Air-Conditioning
evaporator
temperature
sensor
malfunction
Air-Conditioning evaporator temperature is less than 3°C
(37°F)
2.12.3.8 Canister Solenoid Valve Control
Canister solenoid valve controls the amount and time the fuel
vapor enters in cylinders by controlling the passage between
the Canister and intake manifold opening and closing timing,
therefore maximizing the vehicle emissions, while minimizing
the impact on engine performance.
1. Canister solenoid valve working conditions
In order to reduce the amount of fuel vapor entering into the
cylinder affecting the combustion, following conditions must be
met before the Canister solenoid valve is open:
–
System voltage is less than 18 V and more than 8 V
–
Engine coolant temperature is higher than 0°C (32 ºF)
–
Engine intake air temperature is higher than 0°C (32 ºF)
–
No Related System Malfunctions
•
Fuel System Malfunction
•
Fuel Pump Malfunction
•
Idle Speed Too High / Too Low
•
Intake Air Pressure Sensor Malfunction
•
Engine Misfire
•
Pre-Catalytic Oxygen Sensor Heating Malfunction
•
Pre-Catalytic Oxygen Sensor Signal Malfunction
•
System Voltage Too Low / Too High
•
Crankshaft Position Sensor Malfunction
•
Ignition Coil Malfunction
•
Fuel Injector Malfunction
•
Canister Solenoid Valve Output Malfunction
2. Operating Mode
Canister solenoid valve opening is determined by ECM
according to the duty cycle (PWM) signal. In the non-idling
state, the maximum Canister solenoid valve opening is
determined by the close-loop air flow with a maximum 100%.
2.12.3.9 Fault Self-diagnosis and Protection
Function
When the system is working and the engine is running, ECM
controls all system components working, and monitors
components directly connected to it. When one or more
components are in abnormal working conditions, the system
will automatically set an alarm. Each fault condition has a
corresponding unique DTC code and once the fault occurs, the
system will sends output signal corresponding to this code
through the datalink connector. The engine malfunction
indicator lamp will be lit to alert the driver to repair. DTC code
indicates a possible malfunction component.
When a malfunction occurs, the system controls the engine
using temporary emergency program to ensure that the vehicle
can be driven to a repair station for repair.
Engine
Control System JL4G15-D
2-599
2.12.4 Component Locator
2.12.4.1 Component Locator
1
4
3
2
FE02-8041b
Legend
1. Acceleration Pedal Position Sensor
2. Electronic Throttle Body (ETC) Assembly
3. Intake Air Pressure / Temperature Sensor
4. Electronic Control Module (ECM)
2-600
Control System JL4G15-D
Engine
2.12.5 Disassemble View
2.12.5.1 Disassemble View
6
5
4
3
2
1
10
9
8
7
FE02-8042b
Legend
1. Throttle Valve Retaining Bolts
2. Throttle Valve
3. Throttle Drive Motor Retaining Bolts
4. Throttle Drive Gear
5. Seal Plate
6. Seal Plate Retaining Bolts
7. Throttle Body
8. Throttle Drive Motor
9. Throttle Position Sensor
10. Throttle Position Sensor Retaining Bolts
Engine
Control System JL4G15-D
2-601
2.12.6 Schematic
2.12.6.1 Schematic
Engine
Control
Module
1. 12V Battery Voltage
2. 12V Ignition Power Supply
3. 12V Power Ground
4. 5V Sensor Power Ground
5. Ignition Module Driver Ground
6. Intake Air Pressure Temperature Sensor
7. Acceleration Pedal Position Sensor
8. Throttle Body Position Sensor
9. Engine Coolant Temperature Sensor
10. Pre-catalytic Oxygen Sensor
11. Post-catalytic Oxygen Sensor
12. Crankshaft Position Sensor
13. Camshaft Position Sensor
14. Knock Sensor
15. Vehicle Speed Sensor
16. Air Conditioning Request Signal
17. Air Conditioning Pressure Signal
18. Braking Signal
19. Theft-deterrent Signal
20. CAN and Serial Data Communication
1. 5V Reference Voltage
2. Ignition Coil Control
3. Fuel Injector Control
4. Electronic Throttle Body Motor Control
5. Fuel Pump Relay Control
6. Evaporative Canister Solenoid
7. VVT Solenoid Control
8. Air Conditioning Clutch Relay Control
9. Cooling Fan Low Speed Relay Control
10. Cooling Fan High Speed Relay Control
11. Pre-catalytic Oxygen Sensor Heating
Control
12. Post-catalytic Oxygen Sensor Heating
Control
13. CAN Communication
14. Serial Data Communication
FE02-5218b
2-602
Control System JL4G15-D
Engine
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