AutoCodesGMC – C1253 2018 GMC Sierra

C1253 2018 GMC Sierra Code - Longitudinal Acceleration Sensor Circuit High Voltage

Quick Answer

The Yaw Rate, Lateral Acceleration, and Longitudinal Acceleration Sensors are combined into one Multi-Axis Acceleration Sensor, internal to the Inflatable Restraint Sensing and Diagnostic Module. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection. 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
C1253 2018 GMC Sierra indicates Longitudinal Acceleration Sensor Circuit High Voltage.
Common causes
Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection.
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.
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Code Popularity 191
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 19, 2023
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Code C1253 2018 GMC Sierra Description

The Yaw Rate, Lateral Acceleration, and Longitudinal Acceleration Sensors are combined into one Multi-Axis Acceleration Sensor, internal to the Inflatable Restraint Sensing and Diagnostic Module. The Multi-Axis Acceleration Sensor communicates with the Electronic Brake Control Module (EBCM) and Transmission Control Module (TCM) via serial data. The Electronic Brake Control Module activates the stability control function depending on the Multi-Axis Acceleration Sensor input. The Inflatable Restraint Sensing and Diagnostic Module uses the Multi-Axis Acceleration Sensor to determine if the vehicle is in a rollover or near collision incident. The Transmission Control Module sets this Diagnostic Trouble Code (DTC)s. The DTC will be set when the Transmission Control Module detects a fault that prevents it from performing a hill hold function.
OBDII Code C1253 2018 GMC Sierra - Longitudinal Acceleration Sensor Circuit High Voltage - AutoCodes.com
C1253 2018 GMC Sierra Code - Longitudinal Acceleration Sensor Circuit High Voltage

What are the Possible Causes of the DTC C1253 2018 GMC Sierra?

  • Faulty Transmission Control Module (TCM)
  • Transmission Control Module harness is open or shorted
  • Transmission Control Module circuit poor electrical connection
  • Faulty Electronic Brake Control Module (EBCM)

How to Fix the DTC C1253 2018 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1253 2018 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1253 2018 GMC Sierra code?

Need more information on how to fix the C1253 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.

Frequently Asked Questions about C1253 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code C1253 in a 2018 GMC Sierra?

- Common symptoms include the ABS warning light illuminating on the dashboard, stability control issues, and potentially harsh braking.

2. What does the OBDII code C1253 "Longitudinal Acceleration Sensor Circuit High Voltage" mean for a 2018 GMC Sierra?

- This code indicates that the longitudinal acceleration sensor circuit is detecting a higher voltage than normal, signaling a potential issue with the sensor or its circuit.

3. What are possible causes of OBDII code C1253 in a 2018 GMC Sierra?

- Potential causes include a faulty longitudinal acceleration sensor, damaged wiring or connectors in the sensor circuit, or issues with the sensor's calibration.

4. How can I diagnose the OBDII code C1253 in my 2018 GMC Sierra?

- Diagnosis typically involves inspecting the longitudinal acceleration sensor, checking its wiring and connectors for damage or corrosion, and testing the sensor's output voltage.

5. Is it safe to drive my 2018 GMC Sierra with OBDII code C1253 present?

- It is generally not recommended to drive the vehicle with this code, as it may affect the stability control system's functionality and compromise safety.

6. Can I reset the OBDII code C1253 in my 2018 GMC Sierra by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is important to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code C1253 in a 2018 GMC Sierra?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve sensor replacement, wiring repairs, or recalibration, with costs ranging from $100 to $500 or more.

8. Can a DIY enthusiast fix OBDII code C1253 in a 2018 GMC Sierra?

- Depending on the skill level and tools available, some DIY enthusiasts may be able to address this issue by replacing the sensor or repairing the wiring. However, professional diagnosis is recommended.

9. Will OBDII code C1253 affect the vehicle's performance in a 2018 GMC Sierra?

- While the code may not directly impact engine performance, it can affect the vehicle's stability control system and ABS functionality, potentially compromising overall driving safety.

10. How can I prevent OBDII code C1253 from appearing in my 2018 GMC Sierra in the future?

- Regular maintenance, including checking the sensor's condition and ensuring proper wiring connections, can help prevent the recurrence of this code.

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