OBD Guide

P2516

A/C Refrigerant Pressure Sensor B Circuit Range/Performance

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Air conditioner doesn't work
  • Air conditioner malfunction
  • Check Engine Light Is On
  • Reduced cooling efficiency

Causes

  • Faulty refrigerant pressure sensor
  • Open or short circuit in the sensor circuit
  • Poor electrical connection
  • Refrigerant leak
  • Problems with the engine control unit

How to Fix

  1. Check the refrigerant level in the system
  2. Inspect the wiring and connections of the sensor
  3. Check the functionality of the pressure sensor
  4. Replace sensor if necessary
  5. Reset the error code and check the system operation

Related codes

Error P2516 by Vehicle Brand