Yes
Step 10
Diagnostic completed.
5. Repair Instructions:
Replace intake air pressure and temperature sensor. Refer to
Intake Air Pressure and Temperature Sensor Replacement
.
2.2.7.19 DTC P0117 P0118
1. DTC Descriptor:
DTC
P0117
Engine Coolant Temperature Sensor Circuit Voltage Too Low
DTC
P0118
Engine Coolant Temperature Sensor Circuit Voltage Too High
ECT sensor is a variable resistor with negative temperature coefficient and is used to measure engine coolant temperature. ECM
provides 5V voltage through ECM harness connector EN01 terminal No.41 ECT sensor harness connector EN23 terminal A. It also
provides a low reference voltage through EN01 terminal No.40 to the ECT sensor connector EN23 terminal C. ECM will always
record the length of time the ignition switch off. When starting if it reaches the set ignition switch off time, the engine control module
will compare the engine coolant temperature and intake air temperature in order to determine whether the temperature difference
is within the normal working range.
2. Conditions For Setting DTC and The Fault Location:
DTC Code
DTC Detection
Strategy
Conditions For Setting The DTC (Control Strategy)
Fault Locations
P0117
P0118
1. More Than the
Upper Limit
2. Lower Than the
Lower Limit
1. Short to Ground. The engine coolant temperature is higher
than 140°C (284 ºF).
2. Short to power supply. The engine coolant temperature is
lower than -37.5°C (-35.5 ºF).
1. Sensor Circuit
2. Sensor
3. ECM
Engine
Control System JL4G18-D
2-97
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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