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🔵 © ISUMO® More Than a Brand — It’s Quality
• A/C compressor cutoff switch designed to protect the system from excessive pressure
• Includes matching electrical connector for a secure, OE‑style installation
• Monitors refrigerant pressure and signals the ECU to disengage the compressor when needed
• Prevents compressor damage caused by over‑pressure or low‑pressure conditions
• Direct‑fit replacement for worn, leaking, or faulty pressure cutoff switches
• Built with corrosion‑resistant housing and high‑accuracy pressure sensing
🔵 © ISUMO® Functions
• Monitors high‑side refrigerant pressure
• Sends cutoff signal to ECU when pressure exceeds safe limits
• Prevents compressor engagement under unsafe conditions
• Helps maintain stable cooling performance
• Protects A/C system components from damage
🔵 © ISUMO® Error Codes
• P0530 – A/C Refrigerant Pressure Sensor Circuit
• P0531 – A/C Pressure Sensor Range/Performance
• P0532 – A/C Pressure Sensor Low Input
• P0533 – A/C Pressure Sensor High Input
• B10A6 / B10A7 – HVAC Pressure Sensor Fault (varies by manufacturer)
🔵 © ISUMO® Symptoms of Failure
• A/C not cooling or intermittent cooling
• Compressor not engaging
• A/C shuts off during driving
• Check Engine Light or A/C warning
• Incorrect or unstable pressure readings
• Over‑pressure or low‑pressure system faults
🔵 © ISUMO® Benefits of Replacement
• Restores proper compressor protection and operation
• Prevents costly compressor damage
• Improves cooling performance and system reliability
• Eliminates pressure‑related HVAC faults
• Ensures accurate pressure feedback to ECU
🔵 © ISUMO® Package Includes
• 1 × A/C Compressor Cutoff Switch
• 1 × Electrical Connector (OE‑style)
• Ready‑to‑install replacement assembly
🔵 © ISUMO® Important Notes
• Verify refrigerant level before diagnosing pressure faults
• Inspect wiring harness for corrosion or damage
• Clear stored HVAC and ECU codes after installation
• Professional installation recommended
🔵 © ISUMO® Vehicle Applications
• Refer to compatibility chart for complete fitment list
© ISUMO® Registered Trademark. All Rights Reserved.
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