Geely EC718 2009 Workshop Manual page 177

Engine
Intake Air Pressure Temperature
Harness Connector EN16
1 2
Check intake air temperature sensor signal circuit.
Step 5
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
Check intake air temperature sensor ground circuit.
Step 6
3 4
FE02-5026b
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
2 1
14 13 12 11 10 9
FE02-5027b
Control System JL4G18-D
(a) Turn the ignition switch to "OFF" position.
(b) Disconnect intake air pressure and temperature sensor
wiring harness connector EN16.
(c) Turn the ignition switch to "ON" position.
(d) Measure resistance between intake air pressure and
temperature sensor wiring harness connector EN16 terminal
No.1 and a reliable ground.
Standard Resistance: Less than 3 Ω
(e) Connect intake air pressure and temperature sensors wiring
harness connector EN16.
Is resistance normal?
Go to step 6
No
Go to step 7
Yes
(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.2 and ECM harness connector terminal No.25. Check
whether the circuit is open.
(e) Measure resistance between intake air pressure and
temperature sensor wiring harness connector EN16 terminal
No.2 and a reliable ground. Check whether the circuit is short
to ground.
(f) Measure voltage between intake air pressure and
temperature sensor wiring harness connector EN16 terminal
No.2 and a reliable ground. Check whether the circuit is short
to power supply.
Test Items
Resistance Between EN16 (2) and EN01 (25)
Resistance Between EN16 (2) and a Reliable
Ground
Voltage Between EN16 (2) and a Reliable
Ground
Go to step 7
Next
EC718/EC718RV EC715/EC715RV 10/2009
2-95
Standard Value
Less than 1 Ω
10 kΩ or higher
0 V