Geely EC715 2009, Workshop Manual

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Next
Step 8
Use scan tool to confirm whether the DTC code is stored again.
(a) Connect scan tool to the datalink connector.
(b) Turn the ignition switch to "ON" position.
(c) Clear DTC code.
(d) Start and run the engine at idle speed to warm up the engine
for at least 5 min.
(e) Read control system DTC code again to confirm that the
system has no DTC code.
No
Intermittent Fault. Refer to 2.2.7.3 Intermittent
Fault Check .
Yes
Step 9
Diagnostic completed.
2.12.7.42 DTC P0506 P0507
1. DTC Descriptor:
DTC P0506 Idle Speed Too Low
DTC P0507 Idle Speed Too High
Throttle actuator control motor is controlled by the engine control module (ECM). Internal DC motor drives throttle body. In order to
reduce idle speed and adjust the spark and fuel supply, engine control module commands the throttle to close. By reducing the air
flow into the engine, idle speed is lowered. In order to improve idle, the engine control module commands the throttle to open, so
that more air flows through the throttle.
Engine Control Module (ECM) calculates and controls engine idle speed based on coolant temperature, speed compensation,
reducing speed, Air-Conditioning compensation and voltage compensation.
2. Conditions For Setting DTC and The Fault Location:
DTC Code DTC Detection Strategy
Conditions For Setting The DTC (Control
Strategy)
Fault Locations
P0506
Idle speed is lower than the
target speed by 100 rpm
1. Engine is at idle.
2. Vehicle speed is equal to 0.
3. Engine coolant temperature is higher
than 60°C (140 ºF) .
4. Duration Longer Than 10 s.
1. ETC throttle body assembly
2. Intake System
3. Exhaust System
4. ECM
2-750 Control System JL4G15-D Engine
EC718/EC718RV EC715/EC715RV 10/2009