B1A72 Dodge Code - Passive Entry Antenna 2 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 2, Passive Entry Antenna 2 harness is open or shorted, Passive Entry Antenna 2 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
- B1A72 Dodge indicates Passive Entry Antenna 2 General Electric Failure.
- Common causes
- Common causes include Faulty Passive Entry Antenna 2, Passive Entry Antenna 2 harness is open or shorted, Passive Entry Antenna 2 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 B1A72 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 B1A72 Dodge?
- Faulty Passive Entry Antenna 2
- Passive Entry Antenna 2 harness is open or shorted
- Passive Entry Antenna 2 circuit poor electrical connection
- Faulty Passive Entry Module (PEM)
- Faulty Radio Frequency Hub (RF Hub) Module
How to Fix the DTC B1A72 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
B1A72-11 PASSIVE ENTRY ANTENNA 2 CIRCUIT SHORT TO GROUND
B1A72-12 PASSIVE ENTRY ANTENNA 2 CIRCUIT SHORT TO BATTERY
B1A72-13 PASSIVE ENTRY ANTENNA 2 CIRCUIT OPEN
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1A72 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 B1A72 Dodge Code
1. What are the common symptoms of OBDII code B1A72 in a Dodge related to Passive Entry Antenna 2 General Electric Failure?
- Common symptoms include issues with the vehicle's keyless entry system, such as difficulty locking or unlocking the doors using the remote.
2. What can cause the Passive Entry Antenna 2 General Electric Failure OBDII code B1A72 in a Dodge?
- The code B1A72 can be triggered by a malfunction in the Passive Entry Antenna 2, wiring issues, or a faulty General Electric module.
3. How can I diagnose the cause of OBDII code B1A72 related to Passive Entry Antenna 2 General Electric Failure in my Dodge?
- Diagnosis involves using a professional OBDII scanner to read the code, inspecting the Passive Entry Antenna 2 and its wiring for damage, and testing the General Electric module for functionality.
4. Is it safe to continue driving my Dodge with the B1A72 OBDII code related to Passive Entry Antenna 2 General Electric Failure?
- While the vehicle may still be operable, it is recommended to address the issue promptly to prevent further complications with the keyless entry system.
5. Can I repair the Passive Entry Antenna 2 General Electric Failure OBDII code B1A72 in my Dodge myself?
- Depending on your automotive knowledge and skills, you may be able to repair the issue yourself by replacing the faulty components or repairing damaged wiring. However, professional assistance is recommended for accurate diagnosis and repair.
6. How much does it typically cost to repair OBDII code B1A72 related to Passive Entry Antenna 2 General Electric Failure in a Dodge?
- The cost of repair can vary depending on the specific cause of the issue, the extent of the damage, and labor rates in your area. It's best to consult a mechanic for a quote.
7. Will resetting the OBDII code B1A72 related to Passive Entry Antenna 2 General Electric Failure make the problem go away?
- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the error code. Proper diagnosis and repair are necessary.
8. Can extreme weather conditions affect the Passive Entry Antenna 2 General Electric Failure OBDII code B1A72 in a Dodge?
- Yes, extreme temperatures or moisture can potentially impact the functionality of the keyless entry system components, leading to the occurrence of this code.
9. Are there any preventive measures I can take to avoid encountering the B1A72 OBDII code related to Passive Entry Antenna 2 General Electric Failure in my Dodge?
- Regularly inspecting the keyless entry system components for damage, keeping them clean and dry, and addressing any issues promptly can help prevent the occurrence of this code.
10. How long does it typically take to repair the B1A72 OBDII code related to Passive Entry Antenna 2 General Electric Failure in a Dodge?
- The repair time can vary depending on the complexity of the issue and the availability of parts. It's best to consult with a mechanic for a more accurate estimate.
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