Geely EC718, EC718RV, EC715, EC715RV. Manual part — 338
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 338
8.2.7.4 Data Stream List
Serial
Number
Name
Data Range
1
Inside Temperature Sensor
-40°C -80°C
2
Outside Temperature Sensor
-40°C -80°C
3
Evaporator Temperature Sensor
-40°C -80°C
4
Heater Temperature Sensor
-40°C -80°C
5
Ambient and Sun Light Sensor
0-1,250 W
6
Temperature Adjust Motor
0% -100%
7
Air Direction Adjust Motor
0% -100%
8
Inside and Outside Circulation Motor
Inside / Outside
9
Background Light Adjustment
PWM Signal, 0% -100%
10
Compressor Control
On / Off
11
Rear Defrosting Control
On / Off
12
Vehicle Speed Signal
0-255 km/h
13
Blower Voltage
0-16.5 V
14
Battery Voltage
0-18.5 V
8.2.7.5 DTC Code Table
Serial
Number
Content
Possible Reasons
1
Inside temperature sensor circuit open or short to
power supply or ground
1. Inside Temperature Sensor Malfunction
2. Harness Malfunction
3. Control Module Malfunction
2
Outside temperature sensor circuit open or short to
power supply or ground
1. Outside Temperature Sensor Malfunction
2. Harness Malfunction
3. Engine Temperature Abnormal
4. Control Module Malfunction
3
Evaporator temperature sensor circuit open or short to
power supply or ground
1. Evaporator Temperature Sensor Malfunction
2. Evaporator temperature sensor is not installed correctly
3. Harness Malfunction
4. Control Module Malfunction
Heating, Ventilation and A/C System
Automatic Air-conditioning
8-23
Serial
Number
Content
Possible Reasons
4
Heater temperature sensor circuit open or short to
power supply or ground
1. Heater Temperature Sensor Malfunction
2. Heater temperature sensor is not installed correctly
3. Harness Malfunction
4. Control Module Malfunction
5
Ambient and sun light sensor circuit open or short to
power supply or ground
1. Ambient and Sun Light Sensor Malfunction
2. Harness Malfunction
3. Control Module Malfunction
6
Temperature control motor circuit open or short to
power supply or ground
1. Temperature Control Motor Malfunction
2. Throttle Control System Malfunction
3. Harness Malfunction
4. Control Module Malfunction
7
Mode motor circuit open or short to power supply or
ground
1. Mode Motor Malfunction
2. Throttle Control System Malfunction
3. Harness Malfunction
4. Control Module Malfunction
8
Inside and outside circulation motor locked or other
obstruction
1. Inside and Outside Circulation Motor Malfunction
2. Inside and Outside Circulation Air Duct Malfunction
3. Harness Malfunction
4. Control Module Malfunction
9
Blower circuit open or short to power supply or ground,
or speed adjust module abnormal
1. Blower Speed Control Module Malfunction
2. Blower Malfunction
3. Harness Malfunction
4. Control Module Malfunction
10
System voltage is too high or too low
1. Generator Malfunction
2. Control Module Malfunction
8.2.7.6 Air-conditioning Clutch Inoperative
Schematic:
Air-conditioning System Circuit Schematic
Diagnostic Steps:
Step 1
Check the air-conditioning system related DTC code.
(a)
Connect scan tool, read air-conditioning system related to
DTC codes.
8-24
Automatic Air-conditioning
Heating, Ventilation and A/C System
(b)
Repair the fault indicated by the DTC.
(c)
Clear DTC.
Is air-conditioning clutch working properly?
Yes
System normal
No
Step 2
Repair according to the fault symptom table.
(a)
Repair as the following fault symptom table.
Symptoms
Suspected
Faulty
Components
Repair Procedure
Engine Coolant
Temperature Too Low
1. ECT sensor
malfunction.
2. ECT sensor
wiring harness
malfunction.
3. Engine cooling
system work in
the big loop.
4. ECM
malfunction.
1. Repair the ECT
harness.
2. Replace the
ECT.
3. Replace the
thermostat.
4. Repair the
ECM, if
necessary,
replace it.
Air Pressure Switch
Signal Abnormal
1. Pressure
switch
indicates the
air pressure
signal not
comply with
the Standard
Value:.
2. Pressure
switch wiring
harness
malfunction.
3. ECM
malfunction.
1. Repair the
pressure switch
wiring harness.
2. Repair the
pressure switch.
3. Repair the
ECM, if
necessary,
replace it.
Heating, Ventilation and A/C System
Automatic Air-conditioning
8-25
Symptoms
Suspected
Faulty
Components
Repair Procedure
Outside Temperature
Sensor Signal
Abnormal
1. Outside
temperature
sensor
indicates that
the
temperature
below 4°C.
2. Outside
temperature
sensor wiring
harness
malfunction.
3. Air-
conditioning
control module
malfunction.
1. Repair the
outside
temperature
sensor wiring
harness.
2. Repair the
outside
temperature
sensor.
3. Repair the air-
conditioning
control module,
if necessary,
replace it.
Evaporator
Temperature Sensor
Signal Abnormal
1. Evaporator
temperature
sensor
indicates that
the
temperature is
below 2°C
(35.6 ºF).
2. Evaporator
temperature
sensor wiring
harness
malfunction.
3. Air-
conditioning
control module
malfunction.
1. Replace the
evaporator
outside
temperature
sensor wiring
harness.
2. Replace the
evaporator
temperature
sensor.
3. Repair the air-
conditioning
control module,
if necessary,
replace it.
8-26
Automatic Air-conditioning
Heating, Ventilation and A/C System
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