INAPPROPRIATE OPERATION AND CONTROL RECODE 0x51 (COLD CONDITION DAMAGE PREVENTION CONTROL) [PCM (SKYACTIV-D 2.2)]


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Outline

•  If engine oil dilution continues, the engine oil freezes easily when the engine is extremely cold. If the engine oil freezes, the engine oil supplied to each part in the engine may be insufficient resulting in engine burning. To prevent this, the fuel injection amount is controlled.

Operation Conditions

•  The oil pressure does not increase even if the engine is started when the engine coolant temperature at engine start is -18 °C {-0.40 °F} or less and the PCM determines engine oil dilution.

Protection Control

•  Controls engine speed to idle speed.

Diagnosis Procedure and Explanation to Customer

STEP
INSPECTION
ACTION
1
PURPOSE: VERIFY DTCs
•  Has any DTC been stored?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
Explain to the customer that the vehicle is normal and the control was performed to protect the engine.