B1A73 RAM Code - Passive Entry Antenna 3 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 3, Passive Entry Antenna 3 harness is open or shorted, Passive Entry Antenna 3 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
- B1A73 RAM indicates Passive Entry Antenna 3 General Electric Failure.
- Common causes
- Common causes include Faulty Passive Entry Antenna 3, Passive Entry Antenna 3 harness is open or shorted, Passive Entry Antenna 3 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 B1A73 RAM 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 B1A73 RAM?
- Faulty Passive Entry Antenna 3
- Passive Entry Antenna 3 harness is open or shorted
- Passive Entry Antenna 3 circuit poor electrical connection
- Faulty Passive Entry Module (PEM)
- Faulty Radio Frequency Hub (RF Hub) Module
How to Fix the DTC B1A73 RAM?
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
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
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1A73 RAM 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 B1A73 RAM Code
1. What are the common symptoms of OBDII code B1A73 RAM titled Passive Entry Antenna 3 General Electric Failure?
The common symptoms include issues with the passive entry system, such as difficulty unlocking or locking the vehicle with the key fob.
2. What are the possible causes of OBDII code B1A73 RAM for Passive Entry Antenna 3 General Electric Failure?
The code B1A73 typically indicates a fault with the general electric components of the passive entry antenna system, which could be caused by wiring issues, antenna malfunctions, or electronic module failures.
3. How can I diagnose the OBDII code B1A73 related to Passive Entry Antenna 3 General Electric Failure?
Diagnosing this code usually involves using a professional OBDII scanner to read the code and then performing a visual inspection of the passive entry antenna components, checking for any visible damage or loose connections.
4. Can I still drive my vehicle with the OBDII code B1A73 RAM for Passive Entry Antenna 3 General Electric Failure?
It is generally safe to drive your vehicle with this code, but it's recommended to address the underlying issue promptly to avoid potential inconvenience or security concerns related to the passive entry system.
5. How can I repair OBDII code B1A73 RAM related to Passive Entry Antenna 3 General Electric Failure?
Repairing this code may involve checking and repairing any damaged wiring, replacing faulty antenna components, or reprogramming the electronic control module related to the passive entry system.
6. Is it possible to reset the OBDII code B1A73 RAM for Passive Entry Antenna 3 General Electric Failure?
Resetting the code can be done using an OBDII scanner to clear the code after addressing the underlying issue with the passive entry antenna system.
7. Are there any DIY tips for addressing OBDII code B1A73 RAM for Passive Entry Antenna 3 General Electric Failure?
While some basic inspection and maintenance tasks can be done by DIY enthusiasts, it's recommended to consult a professional mechanic for accurate diagnosis and repair of this code to ensure proper functioning of the passive entry system.
8. How much does it typically cost to repair OBDII code B1A73 RAM related to Passive Entry Antenna 3 General Electric Failure?
The cost of repairing this code can vary depending on the specific issue causing the fault, but it may range from a few hundred to a few thousand dollars, including parts and labor.
9. Can extreme weather conditions affect OBDII code B1A73 RAM for Passive Entry Antenna 3 General Electric Failure?
Extreme weather conditions, such as heavy rain or extreme heat, can potentially exacerbate issues with the passive entry antenna system, leading to faults that trigger the B1A73 code.
10. How can I prevent OBDII code B1A73 RAM related to Passive Entry Antenna 3 General Electric Failure in the future?
Regular maintenance checks, keeping the passive entry system components clean and dry, and addressing any issues promptly can help prevent the recurrence of the B1A73 fault code in the future.
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