P0533: A/C Refrigerant Pressure Sensor Circuit High
3 vehicles · 2 makes · $50-$1,800 repair
P0533 is an OBD-II diagnostic trouble code meaning “A/C Refrigerant Pressure Sensor Circuit High.” The A/C refrigerant pressure sensor is reading higher than expected. A/C system may not function correctly. This code appears across 3 vehicle models from 2 manufacturers, with repair costs ranging from $50 to $1,800.
Common Causes
Typical Repair Cost
Based on 3 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0533, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does P0533 mean?
P0533 stands for "A/C Refrigerant Pressure Sensor Circuit High." The A/C refrigerant pressure sensor is reading higher than expected. A/C system may not function correctly.
What are the most common causes of P0533?
The most common causes of P0533 are: Faulty A/C pressure sensor, Overcharged A/C system, Wiring fault, Corroded connector, Blocked condenser. The specific cause varies by vehicle.
How much does it cost to fix P0533?
Repair costs for P0533 range from $50 to $1,800, depending on the vehicle and root cause.
Which vehicles are affected by P0533?
Au7o has documented P0533 across 3 vehicle models from 2 manufacturers: Chevrolet, Toyota.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.