Geely EC718 2009 Workshop Manual page 763

Engine
DTC Code DTC Detection Strategy Conditions For Setting The DTC (Control Strategy)
1. Oxygen sensor signal
circuit open
P0140 2. Oxygen sensor high-
temperature and high
resistance
3. Schematic
12
From Battery
4. Diagnostic Steps:
Connect scan tool.
Step 1
Next
Step 2 Start engine and turn on the scan tool.
Next
Step 3 Select on the scan tool: Engine / read data flow / group 1 oxygen sensor voltage 2(Post-Catalytic oxygen
sensors).
1. Engine running longer than 60 s.
2. Coolant temperature is less than 70 °C (158 ºF).
3. Post-Catalytic oxygen sensor signal exceeds a
reasonable range.
4. Duration longer than 25 s.
Main Relay
Post-catalytic Oxygen Sensor
Control System JL4G15-D
D
C
B
A
EC718/EC718RV EC715/EC715RV 10/2009
2-681
Fault Locations
Engine
Control
Module
FE02-5206b