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ECM Harness Connector EN01
Throttle Body Position Sensor
Harness Connector EN27
1
2
3
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
Standard Value
Resistance Between EN27 (2) and EN01
(18)
Less than 1 Ω
Resistance Between EN27 (2) and a
Reliable Ground
10 kΩ or higher
Voltage Between EN27 (2) and a Reliable
Ground
0 V
Normal
Step 7
Check throttle position sensor signal circuit.
2-106
Control System JL4G18-D
Engine
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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