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Geely Emgrand X7. Manual part - 166
•
Idle Speed Too High/Too Low Malfunction
•
Intake Air Pressure Sensor Malfunction
•
Engine Misfire Malfunction
•
Front Oxygen Sensor Heating Malfunction
•
Front Oxygen Sensor Signal Malfunction
•
System Voltage Too Low/Too High Malfunction
•
Crankshaft Position Sensor Malfunction
• Ignition
Coil
Malfunction
•
Fuel Injector Nozzle Malfunction
•
Canister Solenoid Valve Output Malfunction
2. Operating
Mode
Canister solenoid valve opening is determined by ECM according to the duty cycle (PWM) signal
coming from the engine status. In the non-idling state, the maximum canister solenoid valve
opening is determined by the close-loop air flow with a maximum of 100%.
2.12.3.9 Fault Self-Diagnostic and Protection Function
When the system enters into the working condition and the engine runs, the ECM controls all parts
of the system and monitors the parts directly connected in real time; and when one or more parts
of the system works abnormally, the system will automatically give an alarm. Each fault condition
has a corresponding unique fault code. Once a fault occurs, the system will output the code
through the diagnostic interface and turns on the engine fault indicator lamp at the same time to
remind the driver of timely repairing, and the fault code indicates the part that the fault may be
incurred.
When breaking down, the system can further take temporary emergency scheme to control the
engine, so as to make sure the user drives the vehicle to the maintenance station for maintenance.
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