Geely EC718 2009 Workshop Manual page 178

2-96 Control System JL4G18-D
Intake Air Pressure Temperature
Harness Connector EN16
1 2
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
Next
Step 7 Check ECM power supply circuit.
Yes
Step 8 Replace ECM.
Next
Use scan tool to confirm whether the DTC code is stored again.
Step 9
EC718/EC718RV EC715/EC715RV 10/2009
3 4
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
FE02-5028b
(a) Turn the ignition switch to "OFF" position.
(b) Disconnect intake air pressure and temperature sensor
wiring harness connector EN16.
(c) Disconnect ECM harness connector EN01.
(d) Measure resistance between intake air pressure and
temperature sensor wiring harness connector EN16 terminal
No.1 and ECM harness connector terminal No.40. Check
whether the circuit is open. If there is no open circuit,repair
the faulty part.
(e) Measure voltage between intake air pressure and
temperature sensor wiring harness connector EN16 terminal
No.1 and a reliable ground. Check whether the circuit is short
to power supply. If there is no short circuit,repair the faulty
part.
Test Items
Resistance Between EN16 (1) and
EN01 (40)
Voltage Between EN16 (1) and a
Reliable Ground
Execute next step as per normal.
(a) Check whether ECM power supply circuit is normal.
(b) Check whether ECM ground circuit is normal.
Repair the faulty part.
No
(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) Read control system DTC code again to confirm that the
system has no DTC code.
Intermittent Fault. Refer to
No
Fault Check
Engine
Standard Value
Less than 1 Ω
0 V
2.2.7.3 Intermittent