Geely EC718 2009 Workshop Manual page 740

2-658 Control System JL4G15-D
Yes
Diagnostic completed.
Step 12
5. Repair Instructions:
Replace MAP sensor. Refer to
Refer to 2.2.8.8 Engine Control Module
2.12.7.19 DTC P0112 P0113
1. DTC Descriptor:
DTC P0112
DTC P0113
Intake air temperature pressure sensor has a signal circuit and an ECM internal ground circuit. Intake air temperature pressure
sensor is used to measure the air temperature entering the engine. ECM provides 5 V reference voltage through ECM harness
connector EO01 terminal No.9 to the intake air temperature pressure sensor harness connector EO16 terminal No.2 and an internal
low reference voltage through EO01 terminal No.19 to the intake air temperature pressure sensor EO16 terminal No.1. When the
intake air temperature pressure sensor in cold, the sensor resistance is relatively high. When the air temperature rises, the sensor
resistance decreases. When the sensor resistance is high, ECM detected intake air temperature pressure sensor signal circuit
voltage is high. With the decrease of sensor resistance, ECM detected intake air temperature pressure sensor signal circuit voltage
also decreases.
2. Conditions For Setting DTC and The Fault Location:
DTC Detection
DTC Code
Strategy
1. More Than the Upper
Limit
P0112
P0113 2. Lower Than the Lower
Limit
3. Schematic:
schematic Refer to 2.12.7.18 DTC P0107
4. Diagnostic Steps:
Note
Before carrying out this diagnosis step, observe the data list on scan tool and analyze the accuracy of the data, as
these will help with quick diagnosis.
Initial Inspection
Step 1
EC718/EC718RV EC715/EC715RV 10/2009
2.2.8.7 Intake Air Pressure and Temperature Sensor
ReplacementReplace ECM.
Intake Air Temperature Pressure Sensor Circuit Low Voltage
Intake Air Temperature Pressure Sensor Circuit High Voltage or Open
Conditions For Setting The DTC (Control Strategy)
1. Vehicle speed is greater than 50 km/h.
2. MAT circuit is short to ground.
3. MAT signal voltage becomes 0 immediately.
1. Vehicle speed is less than 25 km/h.
2. MAT circuit is open or short to 5 V reference voltage.
P0108in Schematic.
Intermittent Fault. Refer to
No
Fault Check
Replacement.
Engine
2.2.7.3 Intermittent
Fault Locations
1. Sensor Circuit
2. Sensor
3. ECM