The code for a "secondary bully" problem in a Proton CVT is P1765, which stands for "Secondary pulley pressure too low". This code indicates a problem with the secondary pulley's hydraulic pressure, which can be caused by issues in the CVT fluid system, hydraulic system, or a physical defect in the secondary pulley itself, such as a bearing failure. Trouble Code: P1765 Meaning: Secondary pulley pressure too low Possible Causes: CVT Fluid System: Low or contaminated fluid, or leaks in the cooling