A/C Refrigerant Pressure Sensor Circuit
2000-2008 Jaguar S-Type 3.0L V6 🇨🇦
Description
Malfunction in the A/C refrigerant pressure sensor circuit. The sensor monitors system pressure for compressor protection.
Symptoms
- A/C not engaging
- A/C blows warm air
- A/C cycles on and off rapidly
- Incorrect pressure reading on scan tool
Common Causes
- Faulty pressure sensor/transducer
- Wiring damage
- Low refrigerant level
- Sensor connector corrosion
- PCM input circuit fault
Diagnostic Steps
- Read pressure sensor value with scan tool
- Compare electronic reading to gauge reading
- Test sensor voltage output
- Inspect sensor connector
- Check wiring to PCM
Repair Notes
Replace refrigerant pressure sensor or repair wiring. Check refrigerant charge level.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
B0641 on Other Vehicles
Jaguar E-PACE
2018-2024 2.0L I4 Turbo
Jaguar F-PACE
2017-2024 2.0L I4 Turbo
Jaguar F-PACE
2017-2024 3.0L V6 Supercharged
Jaguar F-Type
2014-2024 3.0L V6 Supercharged
Jaguar F-Type R
2014-2024 5.0L V8 Supercharged
Jaguar I-PACE
2019-2024 Electric AWD
Jaguar X-Type
2002-2008 2.5L V6
Jaguar XE
2017-2024 2.0L I4 Turbo
Common Questions
What does code B0641 mean on a 2000-2008 Jaguar S-Type?
B0641 stands for "A/C Refrigerant Pressure Sensor Circuit". Malfunction in the A/C refrigerant pressure sensor circuit. The sensor monitors system pressure for compressor protection.
What are the symptoms of B0641 on a Jaguar S-Type?
Common symptoms of B0641 include: A/C not engaging, A/C blows warm air, A/C cycles on and off rapidly, Incorrect pressure reading on scan tool.
What causes B0641 on a 2000-2008 Jaguar S-Type?
Common causes of B0641 include: Faulty pressure sensor/transducer, Wiring damage, Low refrigerant level, Sensor connector corrosion, PCM input circuit fault.