Escape 4WD L4-2.5L Hybrid (2009)
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Are any PCM DTCs present?
Yes
For DTC P1A0C only, GO to C2. For all other DTCs, REFER to Computers and Control Systems Information.
No
GO to C2.
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C2 CHECK THE INTEGRITY OF THE 12-VOLT BATTERY
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Ignition OFF.
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Carry out the Battery - Condition Test to determine if the battery can hold a charge and is OK for use. Refer to Battery. See: Starting and
Charging/Battery/Testing and Inspection/Pinpoint Tests
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Did the battery pass the condition test?
Yes
GO to C3.
No
INSTALL a new 12-volt battery.
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C3 CHECK FOR CURRENT DRAINS
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Carry out the Battery - Drain Test. Refer to the Diagnosis and Testing in Battery. See: Starting and Charging/Battery/Testing and
Inspection/Component Tests and General Diagnostics See: Starting and Charging/Battery/Testing and Inspection
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Are any circuits causing excessive current drains?
Yes
REPAIR as necessary. TEST the system for normal operation.
No
GO to C4.
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C4 CHECK THE VOLTAGE TO THE 12-VOLT BATTERY
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Start the engine.
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NOTE: The vehicle will start when the ignition switch is turned to the START position, but after a short period of time (approximately 2 minutes)
the engine may shut down with the ignition switch still in the ON position. The DC/DC converter will output a normal charging rate with the
engine running or not, but the engine MUST have run at least once. The state of charge of the High Voltage Traction Battery (HVTB) will have a
direct affect on the length of engine running time.
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With the engine running (ignition switch ON, engine must have run at least once), monitor the voltage at the 12-volt battery.
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Is the voltage between 13.2-16.0 volts?
Yes
The system is operating correctly at this time. TEST the system for normal operation.
No
GO to C5.
