General Precautions of EFI System Maintenance
F-42
Step I: Use diagnostic instrument to read the malfunction information
Read Result I Read Result II
MIL Lamp On P-CODE Present MIL Lamp Off P-CODE Present
P0267
P0267
Maintenance tips:
The malfunction has been confirmed, and the
following problems may possibly exist
1) The circuit connected to Pin 7# short to ground
Maintenance tips:
The malfunction is not ultimately confirmed and it
may possibly be a random malfunction. Inspect the
following items:
1) The Circuit Connected to the Pin 7# Short to
Ground
52. P0268 3
rd
-Cylinder Fuel Injector Control Circuit Short to Power Supply
Description about Malfunction Cause:
After engine has been started, the circuit voltage is to be measured by the drive module of fuel injector inside
ECU, and when the voltage complies with the voltage in the mode of short to power supply, it is determined to
be the malfunction of short to power supply.
Schematic Circuit:
Malfunction Diagnostic Guide:
Required Equipment: (Diagnostic Instrument with EOBD Diagnostic Function, Digital Multimeter, and
Correct Circuit Diagram)
Step I: Use diagnostic instrument to read the malfunction information
Read Result I Read Result II
MIL Lamp On P-CODE Present MIL Lamp Off P-CODE Present
P0268
P0268
Maintenance tips:
The malfunction has been confirmed, and the
following problems may possibly exist
1) The circuit connected to Pin 7# of ECU and the
133 main relay in short circuit
2) The circuit connected to Pin 7# of ECU and
other power supply circuit in short circuit
Maintenance tips:
The malfunction is not ultimately confirmed and it
may possibly be a random malfunction. Inspect the
following items:
1) The circuit connected to Pin 7# of ECU and the
133 main relay in short circuit
2) The circuit connected to Pin 7# of ECU and
other power supply circuit in short circuit
Main relay
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