Geely EC718 2009 Workshop Manual page 829

Engine
The vehicle speed signal is used to monitor the vehicle speed. The vehicle speed signal is one of the fuel control reference signals
during an urgent deceleration. The vehicle speed sensor working voltage is provided by The Main Relay which is controlled by ECM
via ECM harness connector EN01 terminal No.57. The vehicle speed sensor signal is sent to the instrument panel used for the
vehicle speed display.
2. Conditions For Setting DTC and The Fault Location:
DTC Code DTC Detection Strategy
Vehicle Speed Sensor No
P0502
3. Schematic:
EF12
MAIN
From Battery
Conditions For Setting The DTC (Control Strategy)
1. Under hot operating conditions, driving the vehicle at
Low-Speed at 3rd gear, Disconnect the vehicle
speed sensor. and then press the acceleration pedal
hard to accelerate to higher than 4,000 and
immediately release the pedal. Engine speed,
vehicle speed and MAP values begin to decline.
When entering the fault setting window, DTC code
will be set.
Signal
2. Under hot operating conditions, driving the vehicle at
medium speed at 4th gear, Disconnect the vehicle
speed sensor. and then press the acceleration pedal
to accelerate the vehicle. Engine speed, vehicle
speed and MAP values entering the fault setting
window, DTC code will be set.
Main Relay
5
2
Control System JL4G15-D
3
1
Vehicle
2
Speed
Sensor
EC718/EC718RV EC715/EC715RV 10/2009
Fault Locations
1. Vehicle Speed Sensor
Circuit
2. Vehicle Speed Sensor
3. ECM
1
Engine
Control
Module
41
3
VSS
EO35
62
To Meter
EO35
MPR
2-747
FE02-5292b