Code result
P05E2
A/C Refrigerant Pressure Sensor B Circuit Intermittent or Erratic
Moderate severity
What it means
The high-side refrigerant pressure sensor B reports intermittent or erratic signal - typically a connector or harness fault on the sensor that lives close to the compressor.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Intermittent contact at connector
highOne of the most commonly reported causes for this code — check this first.
Connector with intermittent contact under vibration
lowLess common, but worth ruling out after the more likely causes.
Harness routed against vibrating component
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P05E2 freeNo credit card required