P0666PCM/ECM Internal Temperature Sensor Circuit
⚙️ Powertrain (Motor y Transmisión)
Intermittent error in the control valve.
Compatible with:🚗 Gas/Diesel🔋 Hybrid
⚠️
Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
WhatsAppLlamar
¿Vendes repuestos? Anúnciate aquíAdvertising Space — Google AdSense
Symptoms You Will Notice
What you may observe when this code appears
- Erratic idle
Possible Causes
The components or conditions that trigger this code
- 1Intermittent connection
- 2Dirty valve
Advertising Space — Google AdSense
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Clean the connections
- 2Clean the valve
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
$100—$800
Varies by diagnosis
* Diagnosis only: $50–$150
Advertising Space — Google AdSense
Quick Info
CodeP0666
CategoryMotor (P)
ManufacturerGeneric (SAE)
SeverityModerada
Symptoms1
Causes2
Solution steps2
Dig Deeper
Videos, images and service manuals
Have Another Code?
Look it up directly:
Advertising Space · Sidebar AdSense