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P0513 Cadillac Code - Immobilizer Key Incorrect

Quick Answer

The P0513 code for Cadillac vehicles indicates that the immobilizer key is incorrect or not programmed correctly. Common causes include Incorrectly programmed key, Faulty immobilizer system, Dead or weak key fob battery. 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 Cadillac indicates Immobilizer Key Incorrect.
Common causes
Common causes include Incorrectly programmed key, Faulty immobilizer system, Dead or weak key fob battery.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 25, 2024
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Code P0513 Cadillac Description

The P0513 code for Cadillac vehicles indicates that the immobilizer key is incorrect or not programmed correctly. The immobilizer system is designed to prevent unauthorized access to the vehicle by requiring a specific key to start the engine. When this code is triggered, it means that the key being used is not recognized by the immobilizer system, leading to a security issue. This can result in the vehicle not starting or shutting off shortly after starting.

OBDII Code P0513 Cadillac - Immobilizer Key Incorrect
P0513 Cadillac Code - Immobilizer Key Incorrect

Common Causes of P0513 Cadillac

  1. Incorrectly programmed key
  2. Faulty immobilizer system
  3. Dead or weak key fob battery
  4. Issues with the ignition switch
  5. Wiring or connection problems in the immobilizer system

Symptoms of P0513 Cadillac

  1. Engine cranks but does not start
  2. Engine starts but shuts off shortly after
  3. Key symbol or security light illuminated on the dashboard
  4. Vehicle goes into "limp mode" with reduced performance

How to Fix P0513 Cadillac

  1. Check the key fob battery and replace if necessary
  2. Verify if the key is programmed correctly to the vehicle
  3. Inspect the immobilizer system for any faults or malfunctions
  4. Test the ignition switch for proper functionality
  5. Check wiring and connections in the immobilizer system for any issues

Cost to Fix P0513 Cadillac

The cost to repair a P0513 code on a Cadillac can vary depending on the root cause of the issue. Typically, the cost can range from $100 to $500, including parts and labor. Diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0513 Cadillac

DTC P0513 may be caused by a loose connection or intermittent poor continuity on the ECM ground or at the negative battery cable. Be sure to check the ECM ground(s) and negative battery cable if the normal system diagnosis does not correct the concern.

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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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