Air Conditioning Refrigerant Pressure Sensor Circuit
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P0530 OLDSMOBILE Possible Causes
- A/C system low or over charged with refrigerant
- Faulty A/C Refrigerant Pressure Sensor
- Cooling fans in-operative
- A/C Refrigerant Pressure Sensor harness is open or shorted
- A/C Refrigerant Pressure Sensor circuit poor electrical connection
How do I fix code P0530 OLDSMOBILE?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- There is a Factory Service Bulletin for the 2001-2003 Oldsmobile Silhouette:
- 2001-2003 Oldsmobile Silhouette Factory Service Bulletin OBDII Code P0530
Cost of diagnosing the P0530 OLDSMOBILE code
The cost of diagnosing the P0530 OLDSMOBILE code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The P0530 code is detected when the signal circuit is less than 5 counts (0.09 volt) or more than 250 counts (4.90 volts) and the condition exists for 20 seconds.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- A/C Inoperative
- A/C Blows Warm
P0530 OLDSMOBILE Description
The Powertrain Control Module (PCM) monitors the high side refrigerant pressure via a A/C refrigerant pressure sensor. When the pressure is high the signal voltage is high. When the pressure is low the signal voltage is low. When pressure is high the PCM commands the cooling fans on. When pressure is too high or too low the PCM will not allow the A/C compressor clutch to engage.
