Engine-CodesGMC – C124F 2016 GMC Sierra

C124F 2016 GMC Sierra Code - Lateral Acceleration Sensor Circuit Low Voltage

Quick Answer

The C124F diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the Lateral Acceleration Sensor Circuit, specifically reporting low voltage. Common causes include Faulty lateral acceleration sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C124F 2016 GMC Sierra indicates Lateral Acceleration Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty lateral acceleration sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code C124F 2016 GMC Sierra Description

The C124F diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the Lateral Acceleration Sensor Circuit, specifically reporting low voltage. The lateral acceleration sensor is a crucial component of the vehicle's stability control system, which helps to maintain control during cornering, sudden maneuvers, and slippery road conditions. This sensor measures the vehicle's lateral (side-to-side) acceleration and sends this data to the vehicle's electronic control unit (ECU) for processing.

OBDII Code C124F 2016 GMC Sierra - Lateral Acceleration Sensor Circuit Low Voltage
C124F 2016 GMC Sierra Code - Lateral Acceleration Sensor Circuit Low Voltage

Common Causes of C124F 2016 GMC Sierra

  1. Faulty lateral acceleration sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or contamination in the sensor connections.
  4. Issues with the ECU or related control modules.
  5. Electrical problems such as a blown fuse or relay affecting the sensor circuit.

Symptoms of C124F 2016 GMC Sierra

  1. Illumination of the traction control or stability control warning light on the dashboard.
  2. Decreased stability and control during cornering or sudden maneuvers.
  3. Increased wheel slippage or loss of traction on slippery roads.
  4. Inaccurate readings from the vehicle's stability control system, leading to erratic behavior.

How to Fix C124F 2016 GMC Sierra

  1. Begin by conducting a thorough inspection of the lateral acceleration sensor, wiring, and connectors for any visible damage or corrosion.
  2. Test the sensor's voltage output using a multimeter to verify if it is within the specified range.
  3. If the sensor is faulty, replace it with a new OEM or high-quality aftermarket sensor.
  4. Check and repair any damaged wiring or connectors in the sensor circuit.
  5. Clear the DTC using a diagnostic scan tool and perform a test drive to ensure the issue has been resolved.

Cost to Fix C124F 2016 GMC Sierra

The typical repair costs for addressing a C124F code on a 2016 GMC Sierra can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the price of a new lateral acceleration sensor, any necessary wiring repairs, and the labor costs associated with diagnosis and repair. It's important to note that actual repair costs may vary based on factors such as the location of the repair shop, the vehicle's make and model, and the extent of the damage. Additionally, diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. It's recommended to obtain quotes from multiple repair shops to ensure a competitive price for the repair.

Tech Notes for C124F 2016 GMC Sierra









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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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