Yes
Step 8
Diagnostic completed.
5. Repair Instructions:
Replace the post-catalytic oxygen sensor. Refer to
Post-Catalytic Oxygen Sensor Replacement
.
2.2.7.17 DTC P0105 P0106 P0107 P0108
1. DTC Descriptor:
DTC
P0105
Intake Air Pressure Sensor Signal No Change (Frozen)
DTC
P0106
Intake Air Pressure Sensor Unreasonable
DTC
P0107
Intake Air Pressure Sensor Circuit Short to Ground
DTC
P0108
Intake Air Pressure Sensor Circuit Short to Power Supply
Intake Air Pressure Sensor responds to the pressure changes within the intake manifold. Pressure varies according to engine load.
The sensor circuit consists of the following:
•
5V Reference Voltage Circuit
•
Low Reference Voltage Circuit
•
Sensor Signal Circuit
ECM provides EN16 5 V reference voltage through ECM harness connector EN01 terminal No.19 to the sensor harness connector
EN16 terminal No.3. At the same time ECM provides a low reference voltage through EN01 terminal No.40 to the sensor harness
connector EN16 terminal No.1. The sensor provides a signal through EN16 terminal No.4 to ECM harness connector EN01 terminal
No.59, and the signal is related to the intake manifold pressure change. When the intake manifold absolute pressure is low, ECM
detected signal voltage will be low, such as at idle or during deceleration. When the intake manifold absolute pressure is high, ECM
detected signal voltage will be high, such as when the ignition switch is turned on and the engine is turned off, or when the throttle
fully open. Sensors are also used to determine the atmospheric pressure such as When the ignition switch is turned on and the
engine is turned off. As long as the engine running with the throttle fully open, atmospheric pressure readings will also be updated.
ECM monitors sensor signals in order to determine whether the voltage is beyond the normal range.
2. Conditions For Setting DTC and The Fault Location:
DTC Code
DTC Detection Strategy
Conditions For Setting The DTC (Control
Strategy)
Fault Locations
P0105
Signal Inspection: The
pressure does not decrease
after starting.
1. The pressure drop is less than 2 kPa after
starting.
2. Engine speed is greater than 800 rpm.
1. Sensor Circuit
2. Sensor
3. ECM
P0106
Signal Unreasonable
Pressure Sensor Displayed Pressure.
P0107
Circuit Inspection, Over the
Maximum Limit
Pressure sensor voltage is less than 0.1 V.
Engine
Control System JL4G18-D
2-87
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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