mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 6047 > < Initial Inspection and Diagnostic Overview|Page 6045
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B2 CHECK FOR DC/DC DTC P0AF7:00

 

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Enter the following diagnostic mode on the scan tool: Self Test - DC/DC.

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Is DTC P0AF7:00 reported?

Yes

GO to Pinpoint Test C.  See: Pinpoint Test C: DTC P0AF7:00

No

GO to B3.

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B3 CLEAR DTCs AND CARRY OUT SELF-TEST OF THE DC/DC

 

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Using the scan tool, clear the DC/DC DTCs.

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Enter the following diagnostic mode on the scan tool: Self Test - DC/DC.

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Is DTC P0A94:4B reported?

Yes

INSTALL a new DC/DC. REPEAT the self-test. TEST the system for normal operation.

No

Concern is not present at this time. CHECK the MECS coolant level. REFER to Transmission Cooler, A/T.
CLEAR the DTC. REPEAT the self-test. TEST the system for normal operation.

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Pinpoint Test C: DTC P0AF7:00

High-Voltage Converter/Inverter

Pinpoint Tests

Initial Inspection and Diagnostic Overview|Page 6047 > < Initial Inspection and Diagnostic Overview|Page 6045