P0513 2014 GMC Sierra Code - Immobilizer Key Incorrect
Quick Answer
The immobilizer system functions are provided by the Body Control Module (BCM) and the Engine Control Module (ECM), as well as any control modules that store and report the environment identifier. Common causes include Immobilizer Key not programmed to the vehicle, Faulty Immobilizer Key, Faulty Body Control Module (BCM). 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
- P0513 2014 GMC Sierra indicates Immobilizer Key Incorrect.
- Common causes
- Common causes include Immobilizer Key not programmed to the vehicle, Faulty Immobilizer Key, Faulty Body Control Module (BCM).
- 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.
Code P0513 2014 GMC Sierra Description
When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the transponder in the key is energized by the immobilizer coil surrounding the ignition lock cylinder. This immobilizer coil is part of the immobilizer control module. The transponder transmits a signal that contains its unique value, which is received by the BCM through the immobilizer coil. The BCM then compares this value to a value stored in memory. The BCM also monitors various control modules to determine if the stored environment identifiers match.
If both the environment identifier and the value received from the transponder match, the BCM will send the prerelease password via serial data to the ECM. If the encrypted code's unique value is incorrect or the environment identifier does not match, the BCM will send the start to disable message to the ECM which will prevent the vehicle starter and fuel pump from operating.
When the ECM receives the BCM prerelease password, the ECM will challenge the password. The ECM sends this challenge to the BCM via serial data. Both the ECM and BCM perform a calculation on this challenge. If the BCM calculated response to the challenge equals the calculation performed by the ECM, the ECM will allow the vehicle to start.
The Diagnostic Trouble Code (DTC) will be set when the calculated response from the BCM does not equal the calculation performed by the ECM.
What are the Possible Causes of the DTC P0513 2014 GMC Sierra?
- Immobilizer Key not programmed to the vehicle
- Faulty Immobilizer Key
- Faulty Body Control Module (BCM)
How to Fix the DTC P0513 2014 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
There is a Factory Service Bulletin for the following Chevrolet models:
2010 Chevrolet Express
2011 Chevrolet Express
2011 Chevrolet Silverado
Chevrolet Factory Service Bulletin OBDII Code P0513
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0513 2014 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 P0513 2014 GMC Sierra code?
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Frequently Asked Questions about P0513 2014 GMC Sierra Code
1. What does the OBDII code P0513 mean on a 2014 GMC Sierra?
P0513 indicates an "Immobilizer Key Incorrect" issue, meaning the vehicle’s anti-theft system doesn't recognize the key being used.
2. What are the common symptoms of code P0513 in a 2014 GMC Sierra?
Symptoms include the engine not starting, the security light illuminating on the dashboard, and potential key recognition errors.
3. What causes the P0513 code to appear on a 2014 GMC Sierra?
Common causes include a damaged or unprogrammed key, a faulty immobilizer system, issues with the key fob battery, or problems with the anti-theft module.
4. Can a dead key fob battery trigger the P0513 code in a 2014 GMC Sierra?
Yes, a dead or weak key fob battery can prevent the key from communicating with the immobilizer, triggering the code.
5. How do I fix the P0513 code on my 2014 GMC Sierra?
Start by replacing the key fob battery or using a backup key. If the issue persists, have the key reprogrammed or check the immobilizer system for faults.
6. Can a damaged key cause the P0513 code on a 2014 GMC Sierra?
Yes, a damaged or improperly cut key can lead to the immobilizer not recognizing it and triggering the code.
7. Do I need to tow my 2014 GMC Sierra to a dealership to fix the P0513 code?
Not necessarily. You can try replacing the key fob battery or using a spare key. If these steps don't work, a dealership or locksmith may need to reprogram the key.
8. What tools are required to diagnose the P0513 code on a 2014 GMC Sierra?
A diagnostic scan tool or OBDII scanner can read the code, while specialized tools may be needed for reprogramming or testing the immobilizer system.
9. Can the P0513 code clear itself on a 2014 GMC Sierra?
The code may clear itself if the issue is resolved, such as replacing the key fob battery or using the correct key. Otherwise, it may need to be cleared with a scan tool.
10. Is driving possible with the P0513 code on a 2014 GMC Sierra?
Typically, no. The P0513 code often prevents the engine from starting due to the anti-theft system not recognizing the key.
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