Geely EC718, EC718RV, EC715, EC715RV. Manual part — 60
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 60
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ECM Harness Connector EN01
Crankshaft Position Sensor Harness
Connector EN26
1
2
3
FE02-5080b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect the crankshaft position sensor wiring harness
connector EN26.
(c)
Disconnect ECM harness connector EN01.
(d)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.1 and ECM
harness connector EN01 terminal No.47. Check whether the
circuit is open.
(e)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.1 and a reliable
ground. Check whether the circuit is short to ground.
(f)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.1 and power
supply. Check whether the circuit is short to power supply.
Test Items
Standard Value
Resistance Between EN26 (1) and EN01 (47)
Less than 1 Ω
Resistance Between EN26 (1) and a Reliable
Ground
10 kΩ or higher
Voltage Between EN26 (1) and a Reliable
Ground
0 V
Are the values specified values?
No
Repair the faulty part. Go to step 10
Yes
Step 6
Check sensor terminal No.2 circuit.
Engine
Control System JL4G18-D
2-155
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31
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36
14
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22
ECM Harness Connector EN01
Crankshaft Position Sensor Harness
Connector EN26
1
2
3
FE02-5081b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect the crankshaft position sensor wiring harness
connector EN26.
(c)
Disconnect ECM harness connector EN01.
(d)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.2 and ECM
harness connector EN01 terminal No.46. Check whether the
circuit is open.
(e)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.2 and a reliable
ground. Check whether the circuit is short to ground.
(f)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.2 and power
supply. Check whether the circuit is short to power supply.
Test Items
Standard Value
Resistance Between EN26 (2) and
EN01 (46)
Less than 1 Ω
Resistance Between EN26 (2) and a
Reliable Ground
10 kΩ or higher
Voltage Between EN26 (2) and a
Reliable Ground
0 V
Are the values the specified values?
No
Repair the faulty part. Go to step 10
Yes
Step 7
Check sensor signal plate.
(a)
Check whether the sensor signal plate is damaged, missing
and so on.
(b)
Check whether the sensor signal plate is installed correctly.
No
Repair the faulty part. Go to step 10
Yes
Step 8
Check ECM power supply circuit.
(a)
Check whether ECM power supply circuit is normal.
(b)
Check whether ECM ground circuit is normal.
No
Repair the faulty part.
Yes
Step 9
Replace ECM.
2-156
Control System JL4G18-D
Engine
Next
Step 10
Use scan tool to confirm whether the DTC code is stored again.
(a)
Connect scan tool to the datalink connector.
(b)
Turn the 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 10 min.
(f)
Read control system DTC code again to confirm that the
system has no DTC code.
No
Intermittent Fault. Refer to
Yes
Step 11
Diagnostic completed.
5. Repair Instructions:
Replace crankshaft position sensor. Refer to
Crankshaft Position Sensor Replacement
.
2.2.7.30 DTC P0327 P0328
1. DTC Descriptor:
DTC
P0327
Knock sensor signal circuit voltage is too low
DTC
P0328
Knock sensor signal circuit voltage is too high
KS sensor to ECM feedback signal helps ECM control the ignition timing to achieve the optimal operation and the ignition system
to achieve the best performance, as well as to prevent damage to the engine by a potential knock. KS sensor is located below the
intake manifold on the cylinder. KS sensor voltage changes with the AC signal generated by the vibration with running engine. Engine
control module adjusts spark timing according to KS sensor signal amplitude and frequency.
ECM receives signals from KS sensor harness connector EN08 terminal No.1 and 2 through ECM harness connector EN01 terminal
No.30 and 31.
2. Conditions For Setting DTC and The Fault Location:
DTC Code
DTC Detection Strategy
Conditions For Setting The DTC (Control
Strategy)
Fault Locations
Engine
Control System JL4G18-D
2-157
P0327
Signal Range Too Low
1. Knock identification reference voltage
is 0.35-0.60 V.
2. It occurs for more than 30 times
successively.
3. Engine coolant temperature is greater
than 40°C (104 ºF).
4. Engine speed is greater than 2,600
rpm.
5. Cylinder No.1 can be identified.
1. Sensor Circuit
2. Sensor
3. ECM
P0328
Signal Range Too Low
1. Knock identification reference voltage
is 36-150 V.
2. It occurs more than 30 times
successively.
3. Knock control circuit has no
malfunction.
4. Jolt-limited feature is not activated.
5. Engine load is greater than 39.8%.
3. Schematic:
Knock Sensor
Engine
Control
Module
FE02-5082b
2-158
Control System JL4G18-D
Engine
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