This diagnostic trouble code (DTC) indicates an issue with the roll-over (or yaw rate) sensor, commonly tied to the airbag system to detect roll-over events. Here's a step-by-step guide to address this issue:
Steps to Recalibrate the Roll-Over Sensor:
1. Use a High-End Scan Tool:
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Ensure the scan tool supports SRS (Supplemental Restraint System) or ABS (Anti-lock Braking System) recalibration options.
2. Navigate to the Recalibration/Configuration Menu:
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Look for a section labeled "Recalibration" or "Reconfiguration" under the SRS or ABS menu.
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Check for the roll-over (Yaw Rate) sensor in the dropdown options.
2. Follow On-Screen Instructions:
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Start the recalibration process as per the scan tool's guidance.
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Ensure the vehicle is parked on a flat surface to avoid calibration errors.
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Complete the procedure as prompted.
3. Verify Calibration Success:
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If the recalibration succeeds, the B0099-96 code should clear automatically, and any associated dashboard light (e.g., airbag warning light) should turn off.
What to Do If Recalibration Fails:
1. Retry the Procedure:
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Attempt the recalibration process a few times. Calibration failures can occasionally occur due to minor interruptions or improper setup.
2. Check for Other Issues:
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Inspect the wiring and connections related to the roll-over sensor for damage or loose connections.
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Verify that the sensor itself has no visible physical damage.
3. Replace the Sensor Module:
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If recalibration consistently fails, the sensor may have an internal failure, and replacement is required.
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Use an OEM (Original Equipment Manufacturer) replacement to ensure compatibility and proper system functionality.
Post-Replacement Recalibration:
After replacing the roll-over sensor:
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Perform the recalibration process again to ensure the new sensor is correctly integrated with the system.
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Clear any residual codes using the scan tool.
If issues persist even after following these steps, professional diagnostic services may be required to rule out broader system faults.