No
Intermittent Fault. Refer to
Yes
Step 10
Diagnostic completed.
5. Repair Instructions:
Replace the fuel injector. Refer to
.
2.2.7.26 DTC P0203 P0267 P0268
1. DTC Descriptor:
DTC
P0203
Cylinder No.3 Fuel Injection Control Circuit Open
DTC
P0267
Cylinder No.3 Fuel Injector Control Circuit Short to Ground
DTC
P0268
Cylinder No.3 Fuel Injector Control Circuit Short to Power Supply
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.49. 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
DTC Detection Strategy
Conditions For Setting The DTC
(Control Strategy)
Fault Locations
P0203
P0267
P0268
Hardware Circuit Checks
1. Circuit Open.
2. Circuit Short to Ground.
3. Circuit Short to Power Supply.
1. Sensor Circuit
2. Sensor
3. ECM
Engine
Control System JL4G18-D
2-135
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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