U3570

Stack Inlet Coolant Temperature Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$13–50 (est.)

Symptoms

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

Causes

Open or short circuit in the sensor circuit
Coolant temperature sensor malfunction
Poor contact in the sensor connector
Wiring harness damage
Engine control unit malfunction

How to Fix

Check the integrity of the sensor circuit
Check the sensor connector for oxidation or damage.
Replace the coolant temperature sensor if necessary
Check and replace wiring harness if necessary
Check for software updates for the engine control unit

Related codes

U3571 U3572 U3573