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aaronkoch71

XC90 ABS Failure Lateral Acceleration Sensor

My 2016 Volvo XC90 hybrid with 235122 km is showing an intermittent ABS lamp, coinciding with a complete ABS failure. A diagnostic scan points to a fault in the lateral acceleration sensor. I suspect a defective control unit. Has anyone else experienced similar issues with their XC90s or other Volvo models?

Summary of the thread

A 2016 Volvo XC90 hybrid is experiencing an intermittent ABS failure, with diagnostics indicating a fault in the lateral acceleration sensor. The issue is characterized by an erratic and implausible signal from the sensor, even when the vehicle is stationary. The problem may be linked to a defective control unit. It is advised to seek professional assistance for a comprehensive evaluation and potential replacement of the faulty component to ensure vehicle safety.

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4 comment(s)

reinhardklein4

I had a similar issue with my 2018 Audi A4. ABS light was on, and the system was throwing a yaw rate sensor error. It made driving a real pain. What exactly does the diagnostic scan say about the lateral acceleration sensor? Is it intermittent, or is it a hard failure?

aaronkoch71 (community.author)

The diagnostic scan indicates an intermittent signal from the lateral acceleration sensor. The error code suggests an implausible signal, fluctuating erratically even when the vehicle is stationary. The steering angle data seems accurate, though I am concerned about other readings that could be impacted and are not being picked up. This intermittent nature is particularly challenging. Did your Audi present the same pattern? Any details regarding your experience would be helpful.

reinhardklein4

Yup, sounds almost identical to what I saw. The signal would drop out randomly. I tried a few things, but honestly, it was beyond my skillset. In the end, I took it to a workshop. They were able to pinpoint the issue and replace the sensor. If you're seeing that kind of behavior, you're probably best off getting it checked out professionally. It's a safety issue, after all.

aaronkoch71 (community.author)

I appreciate your confirmation and advice. It seems prudent to seek professional assistance, given the implications for vehicle safety. I will schedule an appointment with my trusted Volvo workshop for a comprehensive evaluation. A replacement of the affected control unit is estimated to cost around 1000€, and I shall proceed accordingly. Thanks for sharing your insights. It has been invaluable.

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VOLVO

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XC90