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B1A73 Chrysler Code - Passive Entry Antenna 3 General Electric Failure

Quick Answer

The B1A73 Chrysler code indicates a Passive Entry Antenna 3 General Electric Failure. Common causes include Damage to the passive entry antenna due to physical impact or corrosion, Electrical issues such as a faulty wiring connection or a blown fuse, Interference from other electronic devices or radio frequencies. 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
B1A73 Chrysler indicates Passive Entry Antenna 3 General Electric Failure.
Common causes
Common causes include Damage to the passive entry antenna due to physical impact or corrosion, Electrical issues such as a faulty wiring connection or a blown fuse, Interference from other electronic devices or radio frequencies.
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 Sep 14, 2024
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Code B1A73 Chrysler Description

The B1A73 Chrysler code indicates a Passive Entry Antenna 3 General Electric Failure. This code specifically points to a malfunction in the passive entry system's antenna, which is responsible for detecting the key fob's signal to allow for keyless entry and push-button start in the vehicle. When this antenna fails, it can lead to issues with the vehicle's keyless entry system, making it difficult or impossible to unlock or start the car without physically using the key.

OBDII Code B1A73 Chrysler - Passive Entry Antenna 3 General Electric Failure
B1A73 Chrysler Code - Passive Entry Antenna 3 General Electric Failure

Common Causes of B1A73 Chrysler

  1. Damage to the passive entry antenna due to physical impact or corrosion.
  2. Electrical issues such as a faulty wiring connection or a blown fuse.
  3. Interference from other electronic devices or radio frequencies.
  4. Malfunctioning key fob or low battery in the key fob.
  5. Software glitches in the vehicle's passive entry system.

Symptoms of B1A73 Chrysler

  1. Difficulty unlocking or locking the vehicle using the key fob.
  2. Inability to start the vehicle using the push-button start feature.
  3. Intermittent issues with the keyless entry system.
  4. Warning light on the dashboard related to the passive entry system.

How to Fix B1A73 Chrysler

  1. Begin by diagnosing the specific cause of the Passive Entry Antenna 3 General Electric Failure using a diagnostic scanner to pinpoint the exact issue.
  2. Inspect the passive entry antenna for any visible damage or corrosion. Replace the antenna if necessary.
  3. Check the wiring connections and fuses related to the passive entry system to ensure they are intact and functioning properly.
  4. Test the key fob to determine if it is transmitting the signal correctly. Replace the key fob battery if needed.
  5. Reset the vehicle's passive entry system and reprogram the key fob to sync it with the antenna.

Cost to Fix B1A73 Chrysler

The typical repair costs for addressing a Passive Entry Antenna 3 General Electric Failure can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of replacing a passive entry antenna can range from $200 to $500, including parts and labor. Additional costs may apply if there are underlying electrical issues or if reprogramming of the key fob is necessary.

What does this mean?

Tech Notes for B1A73 Chrysler

B1A73-01 PASSIVE ENTRY ANTENNA 3 GENERAL ELECTRICAL FAILURE

B1A73-11 PASSIVE ENTRY ANTENNA 3 CIRCUIT SHORT TO GROUND

B1A73-12 PASSIVE ENTRY ANTENNA 3 CIRCUIT SHORT TO BATTERY

B1A73-13 PASSIVE ENTRY ANTENNA 3 CIRCUIT OPEN

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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 B1A73 Chrysler Code

1. What are common symptoms of OBDII code B1A73 Chrysler - Passive Entry Antenna 3 General Electric Failure?

- Common symptoms include issues with the passive entry system, such as the key fob not working properly, difficulty locking or unlocking the vehicle, and intermittent power door lock operation.

2. What are the possible causes of OBDII code B1A73 Chrysler?

- The code B1A73 Chrysler typically indicates a failure with Passive Entry Antenna 3, which could be caused by a faulty antenna module, damaged wiring, or a malfunctioning key fob.

3. How can I diagnose the OBDII code B1A73 Chrysler - Passive Entry Antenna 3 General Electric Failure?

- Diagnosis usually involves using a scan tool to read the code and perform further testing to pinpoint the exact cause, such as checking the antenna module, inspecting wiring connections, and testing the key fob signal.

4. Is it safe to continue driving with OBDII code B1A73 Chrysler active?

- It is generally safe to continue driving with this code, but it is important to address the issue promptly to ensure the proper functioning of the passive entry system.

5. What are some repair tips for fixing OBDII code B1A73 Chrysler?

- Repair tips may include replacing the faulty antenna module, repairing damaged wiring, reprogramming the key fob, or performing a system reset to clear the code and reset the passive entry system.

6. Can I reset OBDII code B1A73 Chrysler myself?

- In some cases, you may be able to reset the code by disconnecting the car battery for a few minutes or using a scan tool to clear the code. However, it is recommended to address the underlying issue to prevent the code from reappearing.

7. How much does it cost to repair OBDII code B1A73 Chrysler?

- The cost of repair can vary depending on the exact cause of the code, but it may involve expenses for parts, labor, and diagnostic services. It is advisable to consult a professional mechanic for an accurate estimate.

8. Can extreme weather conditions affect OBDII code B1A73 Chrysler?

- Extreme weather conditions, such as heavy rain or extreme cold, can potentially affect the functioning of the passive entry system and trigger the B1A73 Chrysler code. Ensuring proper protection and maintenance of the system can help prevent such issues.

9. Are there any preventive measures to avoid OBDII code B1A73 Chrysler in the future?

- To prevent the recurrence of the B1A73 Chrysler code, regular maintenance of the passive entry system, including checking the antenna module, inspecting wiring, and replacing key fob batteries when needed, can help maintain proper functionality.

10. Can a DIY enthusiast with basic automotive knowledge fix OBDII code B1A73 Chrysler?

- Depending on the specific cause of the code, a DIY enthusiast with basic automotive knowledge may be able to address certain issues, such as replacing the key fob battery or checking wiring connections. However, more complex repairs may require professional assistance.

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