Geely EC718, EC718RV, EC715, EC715RV. Manual part — 203
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 203
3. Schematic:
CPS HI
CPS LO
21
20
EO01
EO01
A
B
B
A
C
EO01
EO01
EO01
18
56
23
V5RTN2
CAM1
V5REF2
Crankshaft Position Sensor
Camshaft Position Sensor
Engine
Control
Module
FE02-5297b
4. Diagnostic Steps:
Note
Before carrying out this diagnosis step, observe the data list on scan tool and analyze the accuracy of the data, as
these will help with quick diagnosis.
Step 1
Initial Inspection
(a)
Check the sensor wiring harness connector EN26 whether
there is loose or poor connection and so on.
(b)
Check whether the sensor is installed correctly.
(c)
Check whether the sensor gap is normal.
No
Repair the faulty part. Go to step 10
Yes
Step 2
Read the engine data (engine speed) on the scan tool.
(a)
Connect scan tool to datalink connector.
(b)
Turn the ignition switch to "ON" position.
(c)
Select "Engine"/"Reading Data"/"Engine Speed."
(d)
Start the engine.
(e)
With the engine running, read the engine data on the scan
tool
Engine
Control System JL4G15-D
2-727
Standard Value: Normal data. Refer to
(f)
If the engine does not start, check the data with the engine
running.
(g)
If the engine speed is shown as "0", it indicates the circuit
between the crankshaft position sensor and ECM wiring
harness open or short.
Yes
No
Step 3
Intermittent Fault. Refer to
.
Step 4
Check the crankshaft position sensor.
C
B
A
Crankshaft Position Sensor
FE02-5278b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect the crankshaft position sensor wiring harness
connector EO26.
(c)
Measure crankshaft position sensor resistance.
Standard Resistance: 504-616 Ω at 25°C(77 ºF)
(d)
Connect the crankshaft position sensor wiring harness
connector EN26.
Is resistance normal?
No
Replace the crankshaft position sensor. Refer
to
.
Yes
Step 5
Check sensor terminal No.A circuit.
2-728
Control System JL4G15-D
Engine
21
A
B
C
1
17
33
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
18
19
20
22
23
24
25
26
27
28
29
30
31
32
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Crankshaft Position Sensor Harness
Connector EO26
ECM Harness Connector EO01
FE02-5279b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect the crankshaft position sensor wiring harness
connector EO26.
(c)
Disconnect ECM harness connector EO01.
(d)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal A and ECM harness
connector EN01 terminal No.21. Check whether the circuit is
open.
(e)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal A and a reliable
ground. Check whether the circuit is short to ground.
(f)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal A and power supply.
Check whether the circuit is short to power supply.
Test Items
Standard Value
Resistance Between EN26 (A) and EN01 (21)
Less than 1 Ω
Resistance Between EN26 (A) and A Reliable
Ground
10 kΩ or higher
Voltage Between EN26 (A) 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 B circuit.
Engine
Control System JL4G15-D
2-729
Crankshaft Position Sensor Harness
Connector EO26
ECM Harness Connector EO01
B
21
A
C
1
17
33
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
18
19
20
22
23
24
25
26
27
28
29
30
31
32
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
FE02-5280b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect the crankshaft position sensor wiring harness
connector EO26.
(c)
Disconnect ECM harness connector EO01.
(d)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal B and ECM harness
connector EN01 terminal No.20. Check whether the circuit is
open.
(e)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal B and a reliable
ground. Check whether the circuit is short to ground.
(f)
Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal B and power supply.
Check whether the circuit is short to power supply.
Test Items
Standard Value
Resistance Between EN26 (B) and
EN01 (20)
Less than 1 Ω
Resistance Between EN26 (B) and A
Reliable Ground
10 kΩ or higher
Voltage Between EN26 (B) 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.
(a)
Carry out crankshaft self learn after ECM replacement. Refer
to
Crankshaft Position Sensor (CKP) Learn
2-730
Control System JL4G15-D
Engine
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