Geely EC718 2009 Workshop Manual page 778

2-696 Control System JL4G15-D
Fuel injectors operating voltage is provided by The Main Relay 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 Cylinder No.1 fuel injector internal ground
circuit through ECM harness connector EO01 terminal No.65. ECM monitors all fuel injector driver circuits status, if ECM detects
driving circuit status corresponding voltage is incorrect, ECM will set a fuel injector control circuit fault DTC code.
2. Conditions For Setting DTC and The Fault Location:
DTC Code DTC Detection Strategy
P0261 Hardware Circuit Checks
P0262 Hardware Circuit Checks
3. Schematic:
EF12
MAIN
From Battery
EC718/EC718RV EC715/EC715RV 10/2009
Conditions For Setting The DTC
Injector Signal Circuit Open or Short
Injector Signal Circuit Short To Power
Main Relay
5 3
1
2
Cylinder No.1 Fuel Injector
(Control Strategy)
To Ground
Supply
2
1
Fault Locations
1. Sensor Circuit
2. Sensor
3. ECM
1. Sensor Circuit
2. Sensor
3. ECM
Engine
Control
Module
65
EO01
INJA
62
EO35 MPR
FE02-5251b
Engine