Geely EC718 2009 Workshop Manual page 213

Engine
Fuel injector operating voltage is provided by The Main Relay which is controlled by ECM. Battery voltage passes through the main
relay terminal No.3 to all fuel injector wiring harness connectors terminal No.1. ECM controls fuel injector ground circuit by ECM
harness connector EN01 terminal No.63. ECM monitors all fuel injector driver circuit status, if ECM detects driving circuit
corresponding voltage is incorrect, ECM will set up a fuel injector control circuit fault DTC code.
2. Conditions For Setting DTC and The Fault Location:
DTC Code
P0202
P0264 Hardware Circuit Checks
P0265
3. Schematic:
12
From Battery
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
DTC Detection Strategy
Main Relay
Control System JL4G18-D
Conditions For Setting The DTC
(Control Strategy)
1. Circuit Open.
2. Circuit Short to Ground.
3. Circuit Short to Power Supply.
Cylinder No.2 Fuel Injector
EC718/EC718RV EC715/EC715RV 10/2009
2-131
Fault Locations
1. Sensor Circuit
2. Sensor
3. ECM
Engine
Control
Module
FE02-5057b