Engine Electrical System

Diagnostic trouble code: P0562 “Undervoltage 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 excessive.
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-55
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