B1A75 Dodge Code - Passive Entry Antenna 5 General Electric Failure
Quick Answer
The Passive Entry (PE) antenna units allow the transmitter within the Radio Frequency Hub (also known as the RF Hub) to communicate via Low Frequency (LF) radio transmission with a FOB with Integrated Key (FOBIK) that is located inside the vehicle or, at most, about 2 meters (6.5 feet) horizontally in all directions around the outside of the vehicle. Common causes include Faulty Passive Entry Antenna 5, Passive Entry Antenna 5 harness is open or shorted, Passive Entry Antenna 5 circuit poor electrical connection. 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
- B1A75 Dodge indicates Passive Entry Antenna 5 General Electric Failure.
- Common causes
- Common causes include Faulty Passive Entry Antenna 5, Passive Entry Antenna 5 harness is open or shorted, Passive Entry Antenna 5 circuit poor electrical connection.
- 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 B1A75 Dodge Description
Each antenna unit has two dedicated connections to the RF Hub. One connection is the LF antenna output circuit, while the other connection Is the LF antenna return circuit. These circuits to each antenna unit are a twisted pair to help reduce the potential for induced electrical interference. The RF Hub microcontroller monitors all of the antenna units and will store a Diagnostic Trouble Code (DTC) for any fault that it detects.
The hard wired inputs and outputs of the antenna units may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, the most reliable, efficient, and accurate means to diagnose the antenna units requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.
What are the Possible Causes of the DTC B1A75 Dodge?
- Faulty Passive Entry Antenna 5
- Passive Entry Antenna 5 harness is open or shorted
- Passive Entry Antenna 5 circuit poor electrical connection
- Faulty Passive Entry Module (PEM)
- Faulty Radio Frequency Hub (RF Hub) Module
How to Fix the DTC B1A75 Dodge?
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
B1A75-11 PASSIVE ENTRY ANTENNA 5 CIRCUIT SHORT TO GROUND
B1A75-12 PASSIVE ENTRY ANTENNA 5 CIRCUIT SHORT TO BATTERY
B1A75-13 PASSIVE ENTRY ANTENNA 5 CIRCUIT OPEN
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1A75 Dodge 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.
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Frequently Asked Questions about B1A75 Dodge Code
1. What does the OBDII code B1A75 mean on a Dodge vehicle?
The code B1A75 indicates a "Passive Entry Antenna 5 General Electric Failure," meaning there’s an issue with one of the passive entry system antennas.
2. What are the symptoms of the B1A75 code?
Symptoms may include the keyless entry system not working, difficulty unlocking or locking the vehicle using the key fob, or intermittent functionality of the passive entry system.
3. What causes the B1A75 code to appear?
Common causes include a damaged or failed passive entry antenna, wiring issues such as shorts or open circuits, or a malfunctioning keyless entry module.
4. Can a weak key fob battery trigger the B1A75 code?
No, a weak key fob battery typically won’t trigger this code, but it may cause similar symptoms. Always check the key fob battery first as part of troubleshooting.
5. Where is Passive Entry Antenna 5 located on a Dodge vehicle?
The exact location varies by model, but Antenna 5 is typically found near the rear of the vehicle, such as in the trunk area or rear bumper.
6. How can I diagnose the B1A75 code?
Start by inspecting the wiring and connectors for damage or corrosion near the antenna. Use a scan tool to check for related codes and test the antenna's electrical continuity.
7. Is it safe to drive with the B1A75 code active?
Yes, the vehicle is safe to drive, but the passive entry system may not function properly, potentially causing inconvenience when locking or unlocking the vehicle.
8. How do I fix the B1A75 code?
Repairs may include replacing the faulty antenna, repairing damaged wiring or connectors, or reprogramming the keyless entry module if necessary.
9. How much does it cost to repair the B1A75 code?
Repair costs vary depending on the issue, but replacing a passive entry antenna typically costs between $150 and $300, including parts and labor.
10. Can I reset the B1A75 code without fixing the issue?
You can clear the code with a scan tool, but it will likely return if the underlying problem isn’t resolved. Proper diagnosis and repair are recommended.
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