Geely EC718 2009 Workshop Manual page 804

2-722 Control System JL4G15-D
3. Schematic:
Knock Sensor
4. Diagnostic Steps:
Note
Before carrying out this diagnosis step, observe the data list on scan tool and analyze the accuracy of the data, as
these will help with quick diagnosis.
Initial Inspection
Step 1
Yes
Step 2 Read the engine data (engine speed) on the scan tool.
EC718/EC718RV EC715/EC715RV 10/2009
1
2
(a) Check whether there is KS sensor physical damage.
(b) Check whether KS sensor is installed correctly. Torque is set
too tight or too loose will trigger DTC codes.
(c) Check KS sensor installation surface whether there are
glitches, casting flash and foreign matter.
(d) Knock sensor must be kept away from hoses, brackets and
engine wires.
Are above mentioned parts normal?
Repair the faulty part. Go to step 9
No
(a) Connect scan tool to datalink connector.
Engine
Control
Module
12
KNOCK HI
EO01
28
KNOCK LO
EO01
FE02-5274b
Engine