Product Description:

Rear CMP sensor

OE NO.:   8622446 31288274

Applicable vehicle type: For Volvo

Air suspension system: Continuously monitors axle height, with the ECU activating the air compressor based on signals to deliver pressure to the air springs, enabling automatic body levelling.

Adaptive Front-lighting System (AFS): Detects vehicle pitch angle, automatically adjusting headlight projection height to prevent dazzling oncoming traffic and enhance night-time driving safety.

Common Fault Phenomena

• Abnormal Body Level Compensation
• Incorrect Headlight Illumination Height
• Suspension System Reports Height Sensor Fault Code

Maintenance and Inspection Methods

• Power Supply Check: Ensure the power supply voltage is within the range of 12V±5%
• Signal Detection: Use an oscilloscope to check the output waveform, which should be a stable rectangular square wave
• Mechanical Check: Confirm that the link rod has no deformation or jamming, and the installation bolt torque meets the requirements
• Diagnosis and Calibration: Use an OBD diagnostic tool to read the data stream, and perform sensor re-calibration if necessary

• 20 years of specialized auto parts industry experience
• Expert technical team for comprehensive support
• Direct partnerships with repair shops for real-world feedback
• Premium quality parts ensuring reliability and durability
• Extensive inventory with over 500,000+ items ready to ship
• Responsive customer service with quick turnaround
• Customized solutions for specific vehicle requirements
• Professional technical guidance and installation support
• Comprehensive 12-month warranty coverage
• Competitive pricing through optimized supply chains
• Rigorous quality control meeting industry standards
• Efficient global shipping via multiple carriers