Symptom:
P0562-BATTERY VOLTAGE LOW
When Monitored and Set Condition:
P0562-BATTERY VOLTAGE LOW
When Monitored: The engine running. The engine speed greater than 380 RPM.
Set Condition: Battery voltage is less than 11.5 volts for 10 seconds. Battery Lamp will
illuminate. The Battery Lamp will turn off if the battery voltage recovers to 12.04 volts or
greater, due to reduction of load, increased RPM or an intermittent condition.
POSSIBLE CAUSES
GOOD TRIP EQUAL TO ZERO
B+ CIRCUIT HIGH RESISTANCE
GENERATOR GROUND HIGH RESISTANCE
GENERATOR OPERATION
(Z1) GENERATOR FIELD GROUND CIRCUIT OPEN
(K20) GEN FIELD CONTROL CIRCUIT SHORTED TO GROUND
(K20) GEN FIELD CONTROL CIRCUIT OPEN
PCM
TEST ACTION APPLICABILITY
1 NOTE: Ensure the Battery is in good condition. Using the Midtronics
Battery Tester, test the Battery before continuing.
NOTE: Inspect the vehicle for aftermarket accessories that may exceed the
Generator System output.
Turn the ignition off.
NOTE: Ensure the generator drive belt is in good operating condition.
NOTE: Inspect the fuses in the PDC. If a fuse is found to be open use the
wiring diagram/schematic as a guide, inspect the wiring and connectors for
damage.
Ignition on, engine not running.
With the DRBIIIt, read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
All
Yes → Go To 2
No → Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER-3-NGC.
207
DRIVEABILITY - NGC
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