Geely EC718 2009 Workshop Manual page 188

2-106 Control System JL4G18-D
Throttle Body Position Sensor
Harness Connector EN27
1
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 throttle position sensor signal circuit.
Step 7
EC718/EC718RV EC715/EC715RV 10/2009
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
FE02-5040b
(a) Turn the ignition switch to "OFF" position.
(b) Disconnect throttle position sensor wiring harness connector
EN27.
(c) Disconnect ECM harness connector EN01.
(d) Measure resistance between throttle position sensor wiring
harness connector EN27 terminal No.2 and ECM harness
connector terminal No.18. check whether there is open
circuit. If there is no open circuit, repair the faulty part.
(e) Measure resistance between throttle position sensor wiring
harness connector EN27 terminal No.2 and a reliable ground.
Check whether the circuit is short to ground. If there is no
short circuit, repair the faulty part.
(f) Measure voltage between throttle position sensor wiring
harness connector EN27 terminal No.2 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 EN27 (2) and EN01
(18)
Resistance Between EN27 (2) and a
Reliable Ground
Voltage Between EN27 (2) and a Reliable
Ground
Go to step 9
Normal
Engine
Standard Value
Less than 1 Ω
10 kΩ or higher
0 V