Milan FWD V6-3.0L (2010)
Pinpoint Test C: DTC P0AF7:00
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) is cooled by the Motor Electronics Cooling System (MECS). The DC/DC monitors its temperature
internally. If the internal temperature becomes excessive, DTC P0AF7:00 sets and the DC/DC will be in standby mode (DC/DC disabled) until the
over-temperature condition clears. Presence of this DTC will result in CHECK CHARGING SYSTEM being displayed in the message center and the
12-volt battery eventually becoming drained. Reduced or no functionality of 12-volt systems (headlamps, HVAC blower motor, etc.) may also be
noticed.
-
DTC P0AF7:00 14 (Volt Power Module Internal Temperature Too High: No Sub Type Information) - Sets when the DC/DC senses high internal
temperature.
This pinpoint test is intended to diagnose the following:
-
MECS
-
DC/DC
PINPOINT TEST C: DTC P0AF7:00
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C1 CHECK FOR DC/DC DTC P0A94:4B
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Connect the scan tool.
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Ignition ON.
-
Enter the following diagnostic mode on the scan tool: Self Test - DC/DC.
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Is DTC P0A94:4B reported?
Yes
REFER to Transmission Cooler, A/T to inspect and diagnose the MECS cooling loop circuit.
No
GO to C2.
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C2 CLEAR DTCs AND CARRY OUT SELF-TEST OF THE DC/DC
-
Using the scan tool, clear the DC/DC DTCs.
-
Enter the following diagnostic mode on the scan tool: Self Test - DC/DC.
-
Is DTC P0AF7:00 reported?
Yes
INSTALL a new DC/DC. CLEAR the DTC. REPEAT the self-test. TEST the system for normal operation.
No
Concern is not present at this time. REPEAT the self-test. TEST the system for normal operation.
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Pinpoint Test D: DTC P0AFA:13
High-Voltage Converter/Inverter
