General Precautions of EFI System Maintenance
F-66
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
P0508, P0509, P0511
P0508, P0509, P0511
Maintenance tips:
The malfunction has been confirmed, and the
following problems may possibly exist
1) Open circuit of Pins 64#, 65#, 66# and 67#;
2) Pins 64#, 65#, 66# and 67# short circuited to
ground;
3) Pins 64#, 65#, 66# and 67# short circuited to
power supply
Maintenance tips:
The malfunction is not ultimately confirmed and it
may possibly be a random malfunction. Inspect the
following items:
1) Harnesses of Pins 64#, 65#, 66# and 67#
82. P0560 System Battery Voltage Signal Irrational
Description about Malfunction Cause:
After engine has been started, ECU performs continuous monitoring over the voltage of battery, and the
system will determine the voltage of battery to be irrational, when it is found that the battery voltage is always
lower than 10V.
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
P-CODE Present
P-CODE Present
P0560
P0560
Maintenance tips:
The malfunction has been confirmed, and
the following problems may possibly exist
1) The performance of power generator
reduced and generation capacity
insufficient.
Maintenance tips:
The malfunction is not ultimately confirmed and it may
possibly be a random malfunction. Inspect the following items:
1) Inspect the generation capacity of power generator
(generation voltage to be measured after engine is started)
83. Battery Voltage too Low (Generator without Voltage Output)
Description about Malfunction Cause:
After engine has been started, ECU performs continuous monitoring over the voltage of battery, and the
system will determine that the voltage of battery is too low, when it is found that the voltage of battery is
lower than the system required lower limit.
Malfunction Diagnostic Guide:
Required Equipment: (Diagnostic Instrument with EOBD Diagnostic Function, Digital Multimeter, and
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