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ECM Harness Connector EN01
1
2
3
4
Intake Air Pressure Temperature
Sensor Harness Connector EN16
FE02-5022b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect intake manifold absolute pressure sensor wiring
harness connector EN16.
(c)
Disconnect ECM harness connector EN01.
(d)
Measure resistance between intake manifold absolute
pressure sensor 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 manifold absolute pressure
sensor 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
Standard Value
Resistance Between EN16 (1) and EN01
(40)
Less than 1 Ω
Voltage Between EN16 (1) 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
2-92
Control System JL4G18-D
Engine
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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