Geely EC718 2009 Workshop Manual page 238

2-156 Control System JL4G18-D
Crankshaft Position Sensor Harness
Connector EN26
ECM Harness Connector EN01
64 63 62
61 60 59 58 57
50 49 48 47 46 45 44 43
36 35 34 33 32 31 30 29
22 21 20 19 18 17 16 15
Yes
Check sensor signal plate.
Step 7
Yes
Check ECM power supply circuit.
Step 8
Yes
Step 9 Replace ECM.
EC718/EC718RV EC715/EC715RV 10/2009
1 2 3
56 55 54 53 52 51
8 7
6
5
42 41 40 39 38 37
28 27 26 25 24 23
3
4
1
2
14 13 12 11 10 9
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
Resistance Between EN26 (2) and
EN01 (46)
Resistance Between EN26 (2) and a
Reliable Ground
Voltage Between EN26 (2) and a
Reliable Ground
Are the values the specified values?
Repair the faulty part. Go to step 10
No
(a) Check whether the sensor signal plate is damaged, missing
and so on.
(b) Check whether the sensor signal plate is installed correctly.
Repair the faulty part. Go to step 10
No
(a) Check whether ECM power supply circuit is normal.
(b) Check whether ECM ground circuit is normal.
Repair the faulty part.
No
Engine
Standard Value
Less than 1 Ω
10 kΩ or higher
0 V