HAIMA 7 - Page 175

General Precautions of EFI System Maintenance
F-41
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
P0265 P0265
Maintenance tips:
The malfunction has been confirmed, and the
following problems may possibly exist
1) The circuit connected to Pin 6# of ECU and
the 135 main relay in short circuit
2) The circuit connected Pin 6# 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:
The circuit connected to Pin 6# of ECU and the 135
main relay in short circuit
The circuit connected to Pin 6# of ECU and other power
supply in short circuit.
51. P0267 3
rd
-Cylinder Fuel Injector Control Circuit Short to Ground
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 ground, it is determined to be
the malfunction of short to ground.
Schematic Circuit:
Malfunction Diagnostic Guide:
Required Equipment: (Diagnostic Instrument with EOBD Diagnostic Function, Digital Multimeter, and
Correct Circuit Diagram)
Main relay
Main relay