Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a special sensor in your car, which helps it understand how it's moving, might not be working right.
The C0520 code is triggered when the vehicle's control module detects a malfunction in the multi-axis acceleration sensor, which is responsible for measuring the vehicle's acceleration in multiple directions.
The multi-axis acceleration sensor module, often part of the vehicle's stability control system, measures acceleration forces in multiple directions. This data is used by the vehicle's control systems to maintain stability and control. A fault in this sensor can affect the vehicle's ability to respond to dynamic driving conditions.
• Stability control warning light on
• Traction control system not functioning
• Unexpected vehicle handling behavior
• Faulty multi-axis acceleration sensor
• Poor electrical connection to the sensor
• Damaged wiring harness
OBD-II: On-Board Diagnostics, a system that monitors vehicle performance and reports issues.
Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.
• Check for any additional codes and address them first.
• Inspect the wiring and connectors to the multi-axis acceleration sensor.
• Test the sensor using a diagnostic tool to confirm its functionality.
• Repair or replace damaged wiring or connectors.
• Replace the multi-axis acceleration sensor if faulty.
• Clear the code and test drive the vehicle to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect the vehicle's wiring and connectors.
• Ensure the vehicle's sensors are kept clean and free from debris.
• Schedule routine maintenance checks.
Sensor Issue
• Drive cautiously if the stability control system is not functioning.
• Get the vehicle inspected by a professional as soon as possible.
Check with the vehicle manufacturer for warranty coverage on sensor-related issues.
This code has been associated with stability control issues in various GM vehicles over the years.
Moderate – It is important to address this issue to ensure vehicle stability and safety.
Driving with a malfunctioning stability control system can increase the risk of losing control of the vehicle.
• Vehicle must be on a flat surface.
• Ensure the vehicle's battery is fully charged.
The multi-axis acceleration sensor is typically located near the center of the vehicle, often under the center console or beneath the seats.
Q: Can I drive with the C0520 code?
A: While you can drive, it's not recommended as the stability control system may not function properly.
Q: How do I reset the C0520 code?
A: After repairing the issue, you can use an OBD-II scanner to clear the code.
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