P23C4

Engine Coolant Bypass Valve C Position Sensor Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Engine overheating
Unstable engine operation
Increased fuel consumption
Reduced engine performance
Check Engine Light Is On

Causes

Coolant bypass valve position sensor C malfunction
Short circuit or open circuit in the sensor circuit
Problems with wiring or connectors
ECU malfunction
Damaged coolant bypass valve

How to Fix

Check the sensor wiring and connectors for damage or corrosion
Check the coolant bypass valve position sensor C using a multimeter
Replace the sensor if it is faulty
Check the coolant bypass valve for damage or blockages.
Clear the error code and see if it appears again

Related codes

P23C0 P23C1 P23C2 P23C3