How to Diagnose and Solve B1602 PATS Received Invalid Format Of Key-Code From Ignition Key Transponder Issues

Introduction

If you own a Ford vehicle, you may have come across the B1602 error code. This code indicates that the Passive Anti-Theft System (PATS) has received an invalid format of key-code from the ignition key transponder. This can be a frustrating issue to deal with, but with the right knowledge and tools, you can diagnose and solve the problem yourself. In this article, we will provide you with step-by-step instructions on how to diagnose and solve B1602 PATS received invalid format of key-code from ignition key transponder issues.

What is the PATS System?

The PATS system is a security feature that is installed in Ford vehicles. It is designed to prevent unauthorized access to the vehicle by disabling the engine. The system works by using a transponder in the ignition key that communicates with the PATS module in the vehicle. If the transponder in the key is not recognized by the PATS module, the engine will not start.

Diagnosing the B1602 Error Code

The first step in diagnosing the B1602 error code is to use a diagnostic tool to read the code. This can be done by connecting the diagnostic tool to the OBD-II port in the vehicle. Once the code has been read, you can begin to diagnose the problem.

The most common cause of the B1602 error code is a faulty transponder in the ignition key. To test this, you will need to use a second key. If the second key works, then the problem is with the first key. If the second key does not work, then the problem is with the PATS module.

Another possible cause of the B1602 error code is a faulty PATS module. To test this, you will need to use a diagnostic tool to check the communication between the PATS module and the transponder in the key. If there is no communication, then the PATS module is faulty and will need to be replaced.

Solving the B1602 Error Code

If the problem is with the transponder in the key, then the key will need to be replaced. This can be done by contacting a Ford dealership or a locksmith who specializes in Ford vehicles. They will be able to provide you with a new key and program it to work with your vehicle.

If the problem is with the PATS module, then it will need to be replaced. This can be done by contacting a Ford dealership or a mechanic who specializes in Ford vehicles. They will be able to replace the module and program it to work with your vehicle.

Useful Tips

– Always have a spare key for your vehicle in case of emergencies.
– If you are having trouble starting your vehicle, try using a different key to see if the problem is with the key or the PATS module.
– If you are replacing the PATS module, make sure to get it programmed to work with your vehicle.

Conclusion

Dealing with the B1602 error code can be frustrating, but with the right knowledge and tools, you can diagnose and solve the problem yourself. Whether the problem is with the transponder in the key or the PATS module, there are solutions available. By following the steps outlined in this article, you can get your Ford vehicle back on the road in no time.

FAQs

Q: Can I program a new key myself?
A: No, programming a new key requires specialized equipment that is only available to Ford dealerships and locksmiths who specialize in Ford vehicles.

Q: How much does it cost to replace a PATS module?
A: The cost of replacing a PATS module can vary depending on the make and model of your vehicle. It is best to contact a Ford dealership or a mechanic who specializes in Ford vehicles for an accurate quote.

Q: Can I disable the PATS system?
A: No, the PATS system is a security feature that is designed to prevent unauthorized access to the vehicle. Disabling the system can compromise the security of your vehicle.