1
3
5
7
8
6
4
2
9
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23
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27
28
29
30
37
51
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63
64
38
39
40
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31
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14
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ECM Harness Connector EN01
Throttle Body Position Sensor
Harness Connector EN27
1
2
3
FE02-5042b
(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.1 and ECM harness
connector terminal No.39. Check whether the circuit is open.
If there is no open circuit, repair the faulty part.
(e)
Measure voltage between throttle position sensor wiring
harness connector EN27 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
Standard Value
Resistance Between EN27 (3) and EN01
(39)
Less than 1 Ω
Voltage Between EN27 (3) and a Reliable
Ground
0 V
Execute next step as per normal.
Next
Step 9
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 10
Replace ECM.
Next
Step 11
Use scan tool to confirm whether the DTC code is stored again.
(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.
No
Intermittent Fault. Refer to
2-108
Control System JL4G18-D
Engine
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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