Engine Electrical System

Diagnostic trouble code: P0560 “Improper voltage signal of system”
Item
No.
Operation procedure
Inspection
results
Follow-up
procedure
1
Connect the diagnostic tester and adaptor,
and turn the ignition switch to “OFF”
position.
Proceed to next
step
Yes
Proceed to next
step. 2
Inspect with multimeter to verify that the
voltage of battery is about 12V.
No Replace the battery.
Yes
Repair or replace
the wiring harness.
3
Verify that the resistances between the
44#, 45#, and 63# pins of ECU and 87#
pin of the main relay are open or short to
ground.
No
Proceed to next
step
Yes
Proceed to next
step
4
Start up the engine, and verify that the
charging voltage of generator is
maintained within 9-16V under different
speeds.
No
Replace the
generator.
Yes
Refer to diagnosis
help.
5
Verify that the earth point of engine
wiring harness is correct.
No
Repair or replace
the wiring harness.
E-54
PDF created with pdfFactory Pro trial version www.pdffactory.com