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Home >> BMW >> 2008 >> 323i Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 894 (Self Diagnosis - Theory & Operation (N52)) >> Manifold Pressure >> Variable Valve Lift (VVL) - Electrical Diagnosis >> Monitoring function - DC motor overload temperature

Monitoring function - DC motor overload temperature

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P107B, P1078 

The purpose is to estimate the bus conductor temperature of the VVL DC Motor to protect the component for overload.

Error Symptoms:

ERROR SYMPTOMS

The first warning threshold:  
VVL DC Motor bus conductor temp > 190 °C P107B
The second critical threshold:  
VVL DC Motor bus conductor temp > 200 °C P1078