P05C1

Symptoms

• Check Engine light is on
• The louvers of the lower or side sections of the grille hang in one position
• Possible slight overheating under intense loads
• Deterioration of the aerodynamic characteristics of the car
• Active blinds warning on dashboard

Causes

• Mechanical blocking of section B blinds (ice, stone, plate deformation)
• Module B motor overload due to increased resistance
• Overheating of the engine compartment affecting the module electronics
• Module B electronics internal fault
• Damage or oxidation of wiring and module B connector

How to Fix

1. Monitor the coolant temperature - if it overheats, stop the car immediately
2. Inspect the bottom of the front grille for blockages, foreign objects, or deformation.
3. Manually check the mobility of the blinds of section B - the movement should be smooth, without jamming
4. Connect a scanner and view data on blinds module B in real time
5. Check the electrical circuits of module B: supply voltage, wiring integrity, connector condition
6. Replace module B if it is confirmed to be faulty

Related codes

Error P05C1 by Vehicle Brand