Geely EC718 2009 Workshop Manual page 184

2-102 Control System JL4G18-D
Yes
Diagnostic completed.
Step 10
5. Repair Instructions:
Replace the engine coolant temperature sensor. Refer to
2.2.7.20 DTC P0122 P0123
1. DTC Descriptor:
DTC P0122
DTC P0123
The actual throttle position will be compared with throttle position determined by the engine load. Engine Control Module (ECM)
detects the engine load by intake manifold absolute pressure sensor (MAP) signal. After further comparison, ECM determines
whether there is a sensor fault and set the corresponding DTC codes.
• ECM provides 5 V reference voltage through ECM harness connector EN01 terminal No.39 to TPS sensor harness connector
EN27 terminal No.1.
• TPS provides sensor signal voltage through EN27 terminal No.3 to ECM harness connector EN01 terminal No.26.
•
ECM provides low reference voltage through ECM harness connector EN01 terminals No.14 and No.18 to TPS sensor harness
connector EN27 terminal No.2.
2. Conditions For Setting DTC and The Fault Location:
DTC Detection
DTC Code
1. Higher Than
Throttle Position
and Angle
Signals Maximum
Limit
P0122
P0123 2. Lower Than
Throttle Position
and Angle
Signals Minimum
Limit
EC718/EC718RV EC715/EC715RV 10/2009
Throttle Position Sensor Circuit Voltage Lower Than Minimum
Throttle Position Sensor Circuit Voltage Higher Than Maximum
Conditions For Setting The DTC (Control
Strategy
1. Throttle Position angle signal is greater than
99%.
2. Throttle Position angle signal is less than
1.2%.
3. Engine speed is greater than 800 rpm.
2.2.8.6 Engine Coolant Temperature Sensor
Strategy)
Replacement.
Fault Locations
1. Sensor Circuit
2. Sensor
3. ECM
Engine