Quick Answer
B1564 means: The B1564 code indicates an issue with the ignition key or keyless entry system.
Can I drive with B1564? Recommended to diagnose and repair immediately to avoid vehicle starting issues.
Common Questions
What does B1564 mean and how does it affect my car?
The B1564 code indicates a problem with your vehicle's ignition key or keyless entry system, which can prevent your car from starting or cause issues with remote access. If ignored, it may lead to further electrical problems.
What are the most common causes of B1564 and how much does it cost to fix?
Common causes include a faulty ignition switch, a dead key fob battery, or wiring issues. Repair costs can range from $100 to $300, depending on the issue.
Can I drive my car with B1564 or should I stop immediately?
While you may still be able to drive the car initially, it's not advisable to ignore the B1564 code as it can lead to starting issues and might leave you stranded.
How can I diagnose B1564 myself using GeekOBD APP?
With the GeekOBD APP, you can perform a diagnostic scan of your vehicle, view error codes, and check for freeze frame data, which will help you identify the context of the B1564 code.
What vehicles are most commonly affected by B1564?
The B1564 code is frequently seen in the 2000-2015 Ford Focus and some models from Chrysler, including the 2005-2010 Dodge Charger, among others.
How can I prevent B1564 from happening again?
Regularly inspect your ignition system and key fob for wear and tear, and replace any worn components as necessary. Keeping your vehicle's electrical system clean can also help prevent similar issues.
What is B1564?
The B1564 diagnostic trouble code (DTC) is primarily associated with the vehicle's Body Control Module (BCM) and indicates a problem with the ignition key or the keyless entry system. When this code is triggered, it typically means that the BCM is not receiving the expected signals from the ignition switch or key fob, which can lead to issues with starting the vehicle or operating the security system. This can manifest as a non-responsive ignition, where the vehicle fails to start, or as an intermittent failure of the keyless entry features. The B1564 code can affect various makes and models, but it's particularly common in vehicles like the 2000-2015 Ford Focus and some models from Chrysler, such as the 2005-2010 Dodge Charger. If left unresolved, this issue can lead to further complications in the vehicle's electrical system, potentially causing other electrical components to malfunction. Therefore, it’s crucial to address this code promptly to ensure the reliability and safety of your vehicle.
System: B - Body (Airbags, Lighting, Security, Climate Control)
Symptoms
Common symptoms when B1564 is present:
- The check engine light or security light may illuminate on the dashboard, indicating an ongoing issue with the vehicle's ignition system.
- The vehicle may fail to start, which can leave you stranded if not addressed promptly.
- Keyless entry features may not function properly, leading to difficulties in locking or unlocking the doors remotely.
- Intermittent electrical issues may arise, such as windows or lights not responding as they should.
- In some cases, you might notice a delay in the vehicle's response when turning the ignition key or pressing the start button.
Possible Causes
Most common causes of B1564 (ordered by frequency):
- The most common cause of the B1564 code is a faulty ignition switch, which accounts for about 40% of cases. This switch can wear out over time, leading to inconsistent signals to the BCM.
- Another potential cause is a defective key fob or a dead battery in the key fob, which can prevent the BCM from recognizing the key, leading to starting issues.
- A wiring issue, such as damaged or corroded wires between the key switch and the BCM, could also trigger this code. Regular inspections can help prevent this.
- Less commonly, a malfunctioning Body Control Module itself can cause the B1564 code, which may require replacement or reprogramming.
- In rare cases, interference from aftermarket alarm systems or remote starters may cause the BCM to misinterpret signals from the ignition system.
B1564 Repair Costs
Cost Breakdown by Repair Type
Ignition Switch Replacement
Replacing the faulty ignition switch can resolve the B1564 code and restore proper functionality.
- Total: $100 - $300
- Success rate: 90%
Money-Saving Tips for B1564
- Start with the most common and least expensive repairs first
- Use GeekOBD APP to confirm diagnosis before replacing expensive parts
- Consider preventive maintenance to avoid future occurrences
- Compare prices for OEM vs aftermarket parts based on your needs
- Address the issue promptly to prevent more expensive secondary damage
Diagnostic Steps
Professional B1564 Diagnosis Process
Follow these systematic steps to accurately diagnose B1564. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion around the ignition switch and BCM (5-10 minutes)
Step 2: OBD2 scan with GeekOBD APP - Use the GeekOBD APP to retrieve all DTCs and freeze frame data to understand the fault context and any accompanying codes (10-15 minutes)
Step 3: Component testing - Utilize a multimeter to check the voltage and continuity at the ignition switch and BCM connections, ensuring they meet manufacturer specifications (20-30 minutes)
Step 4: System function test - After any repairs, test the ignition system and keyless entry functions to verify proper operation and clear codes with the GeekOBD APP (10-15 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure no further codes are generated (15-20 minutes)
Important Notes
- Always verify the repair with GeekOBD APP after completing diagnostic steps
- Clear codes and test drive to ensure the problem is resolved
- Address underlying causes to prevent code recurrence
Real Repair Case Studies
Case Study 1: Ford Focus Ignition Key Issue
Vehicle: 2010 Ford Focus, 85,000 miles
Problem: Customer reported that the vehicle would not start intermittently, and the security light was on.
Diagnosis: After using the GeekOBD APP to retrieve the B1564 code, a visual inspection revealed a worn ignition switch.
Solution: Replaced the ignition switch and verified that the key fob was functioning properly.
Cost: $150 (parts $100, labor $50)
Result: The vehicle started successfully after the repair, and the security light was off.
Case Study 2: Dodge Charger Keyless Entry Failure
Vehicle: 2007 Dodge Charger, 90,000 miles
Problem: Customer complained that the keyless entry system was not working, and they received a B1564 code.
Diagnosis: Diagnostic steps revealed a dead battery in the key fob, affecting the BCM's ability to recognize the key.
Solution: Replaced the key fob battery and reprogrammed the key with the BCM.
Cost: $75 (parts $15, labor $60)
Result: Keyless entry functions were restored, and the B1564 code was cleared.