B1A73 Jeep 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 Jeep 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 Jeep 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 Jeep?
- 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 Jeep?
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 Jeep 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 Jeep Code
1. What are the common symptoms of OBDII code B1A73 in a Jeep related to Passive Entry Antenna 3 General Electric Failure?
Symptoms may include issues with the keyless entry system, difficulty locking or unlocking the doors remotely, or sporadic operation of the passive entry system.
2. What can cause the OBDII code B1A73 in a Jeep indicating Passive Entry Antenna 3 General Electric Failure?
The code B1A73 usually points to a malfunction in the passive entry antenna, such as a wiring problem, a faulty antenna module, or water damage.
3. How can I diagnose the OBDII code B1A73 related to Passive Entry Antenna 3 General Electric Failure in my Jeep?
Diagnosis typically involves checking the wiring and connections of the passive entry antenna, testing the antenna module, and inspecting for any signs of water intrusion in the system.
4. Is it safe to continue driving my Jeep with the OBDII code B1A73 indicating Passive Entry Antenna 3 General Electric Failure?
While the vehicle should still be safe to drive, it is recommended to address the issue promptly to avoid potential inconvenience or security concerns related to the keyless entry system.
5. Can I repair the OBDII code B1A73 in my Jeep related to Passive Entry Antenna 3 General Electric Failure myself?
Depending on your level of automotive expertise, you may be able to address the issue by inspecting the antenna system, checking for loose connections, or replacing the faulty components as needed.
6. Are there any temporary fixes or workarounds for the OBDII code B1A73 associated with Passive Entry Antenna 3 General Electric Failure?
Temporary fixes may include resetting the system by disconnecting the battery, ensuring the key fob has a fresh battery, or reprogramming the keyless entry system following the manufacturer's guidelines.
7. What is the typical cost to repair the OBDII code B1A73 in a Jeep due to Passive Entry Antenna 3 General Electric Failure?
The cost of repair can vary depending on the underlying issue, but it may involve expenses related to parts replacement, labor costs, and diagnostic fees from a professional technician.
8. How long does it usually take to repair the OBDII code B1A73 related to Passive Entry Antenna 3 General Electric Failure in a Jeep?
The repair time can vary based on the specific problem identified, but it may take anywhere from a few hours to a full day for a mechanic to diagnose and address the issue effectively.
9. Can the OBDII code B1A73 in a Jeep be triggered by factors other than a Passive Entry Antenna 3 General Electric Failure?
While the code B1A73 commonly relates to issues with the passive entry antenna, it is essential to conduct a thorough diagnosis to rule out other potential causes such as electrical faults or communication errors within the system.
10. Will resetting the OBDII system clear the B1A73 code related to Passive Entry Antenna 3 General Electric Failure in my Jeep?
Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the passive entry antenna persists, the code is likely to reappear until the problem is properly addressed and resolved.
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