P2C3D

Cylinder Head Temperature Sensor A/B Correlation

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Deterioration of vehicle dynamics
Increased fuel consumption
Cold start problems
Activating emergency engine operation

Causes

Head temperature sensor A or B is faulty
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Engine control unit malfunction
Mechanical damage to sensors

How to Fix

Check temperature sensor readings using a diagnostic scanner
Check the integrity of the sensor circuits
Check sensor connectors and contacts
Replace faulty temperature sensor
If necessary, replace the engine control unit

Related codes

P1297 P1298 P0128