P0EC2

A/C Refrigerant Temperature Sensor B Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect operation of the air conditioner
The air conditioner turns off spontaneously
Increased noise from the compressor
Insufficient interior cooling
Fault indication on the instrument panel

Causes

Refrigerant temperature sensor B fault
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Problems with the air conditioning control unit

How to Fix

Check the integrity of the sensor circuit
Inspect connectors and contacts for corrosion or damage
Check sensor resistance at different temperatures
Replace the coolant temperature sensor if necessary
Reset the error code and check the system

Related codes

P0EC1 P0EC3 P0EC4