P2CD4

A/C Refrigerant Pressure Sensor A/B Correlation

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Air conditioner doesn't work
Reduced cooling efficiency
Hot air from vents
Check Engine light comes on
Possible increased load on the engine

Causes

Refrigerant pressure sensor A or B faulty
Problems in the electrical circuit of the sensors
Refrigerant leak
Air conditioning control unit malfunction
Corroded or damaged connectors

How to Fix

Check the refrigerant level in the system
Conduct diagnostics of pressure sensors
Check the integrity of electrical circuits
Replace faulty sensor
Test the operation of the system after repair

Related codes

P2CD5 P0530 P0532