Milan FWD V6-3.0L (2010)
Pinpoint Tests
Pinpoint Test E: DTC P0AFA:16
Refer to Wiring Diagram Set 12 (Fusion/Milan/MKZ, Fusion Hybrid/Milan Hybrid), Charging System for schematic and connector information. See:
Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
The DC to DC Converter Control Module (DC/DC) monitors the high voltage available from the High Voltage Traction Battery (HVTB). If the DC/DC
senses high voltage of less than 150 volts, it will set DTC P0AFA:16 and request the CHECK CHARGING SYSTEM message be displayed in the
message center. The DC/DC will be in standby mode (DC/DC disabled) until the low-voltage condition clears, resulting in the 12-volt battery eventually
becoming drained. Reduced or no functionality of 12-volt systems (headlamps, HVAC blower motor, etc.) may also be noticed.
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DTC P0AFA:16 (Hybrid Battery System Voltage Low: Circuit Voltage Below Threshold) - Sets when the DC/DC senses HVTB voltage of less
than 150 volts.
This pinpoint test is intended to diagnose the following:
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Identify subsystem which is source of HVTB system fault
PINPOINT TEST E: DTC P0AFA:16
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E1 CHECK FOR DC/DC DTC P0AFA:13
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Ignition ON.
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Connect the scan tool.
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Enter the following diagnostic mode on the scan tool: Self Test - DC/DC.
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Is DTC P0AFA:13 reported?
Yes
GO to Pinpoint Test D. See: Pinpoint Test D: DTC P0AFA:13
No
