Geely EC718 2009 Workshop Manual page 151

Engine
DTC Code
Air-Fuel Ratio Closed-loop Control self learn
P2187 Higher Than Maximum Limit (Low-Load
Zone)
Air-Fuel Ratio Closed-loop Control self learn
P2188 Lower Than Minimum Limit (Low-Load
Zone)
Pre-Catalytic Oxygen Sensor Aging (Too
P2195
Lean)
Pre-Catalytic Oxygen Sensor Aging (Too
P2196
Rich)
Post-Catalytic Oxygen Sensor Aging (Too
P2270
Lean)
Post-Catalytic Oxygen Sensor Aging (Too
P2271
Rich)
CAN High-Speed Communication Bus
U0001
Malfunction
Communication With ABS Controller
U0121
Interrupted
U0140 Communication With BCM Interrupted
Communication With airbag control module
U0151
Interrupted
2.2.7.12 DTC P0010 P2088 P2089
1. DTC Descriptor:
DTC
DTC
DTC
The intake camshaft position actuator is connected to the intake camshaft and operated by hydraulic pressure. The hydraulic
pressure is provided by the engine oil pump in order to change the intake camshaft to the crankshaft relative position (CKP ) angle.
The intake VVT solenoid valve power supply is provided by The Main Relay. ECM modulates the pulse-width to control signal ground,
thus controlling the camshaft position actuator engine oil flow. Engine oil pressure moves the camshaft position actuator slide valve
at the front of the camshaft. When the safety slide valve is operated, the engine oil is imported into the camshaft position actuator,
so that camshaft rotates. The intake camshaft cam actuator can change the camshaft working angle up to 50°.
ECM controls the solenoid valve internal ground by ECM harness connector EN01 terminal No.2. There is a feedback circuit within
ECM. ECM monitors the feedback signals to determine whether there is an open control circuit, or a short to ground circuit or a short
to power supply circuit. If ECM detects the control circuit voltage is within a predetermined range, when being disconnected, this
DTC code is set.
Description
P0010 VVT Intake Control Solenoid Valve Circuit Open
P2088 VVT Intake Control Solenoid Valve Circuit Short to Ground
P2088 VVT Intake Control Solenoid Valve Circuit Short to Power Supply
Control System JL4G18-D
Diagnostic Procedures
Refer to 2.2.7.23 DTC P0170 P0171 P0172 P2177 P2178 P2187
P2188.
Refer to 2.2.7.21 DTC P0130 P0131 P0132 P0133 P0134 P2195
P2196.
Refer to 2.2.7.22 DTC P0136 P0137 P0138 P0140 P2270
Refer to 2.2.7.43 DTC P1523 U0001 U0121 U0140
EC718/EC718RV EC715/EC715RV 10/2009
2-69
P2271.
U0151.