B1A71 RAM Code - Passive Entry Antenna 1 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 1, Passive Entry Antenna 1 harness is open or shorted, Passive Entry Antenna 1 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
- B1A71 RAM indicates Passive Entry Antenna 1 General Electric Failure.
- Common causes
- Common causes include Faulty Passive Entry Antenna 1, Passive Entry Antenna 1 harness is open or shorted, Passive Entry Antenna 1 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 B1A71 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 B1A71 RAM?
- Faulty Passive Entry Antenna 1
- Passive Entry Antenna 1 harness is open or shorted
- Passive Entry Antenna 1 circuit poor electrical connection
- Faulty Passive Entry Module (PEM)
- Faulty Radio Frequency Hub (RF Hub) Module
How to Fix the DTC B1A71 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
B1A71-11 PASSIVE ENTRY ANTENNA 1 CIRCUIT SHORT TO GROUND
B1A71-12 PASSIVE ENTRY ANTENNA 1 CIRCUIT SHORT TO BATTERY
B1A71-13 PASSIVE ENTRY ANTENNA 1 CIRCUIT OPEN
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1A71 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.
Need more information about the B1A71 RAM code?
Need more information on how to fix the B1A71 RAM code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1A71 RAM code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B1A71 RAM Code
1. What are the common symptoms of OBDII code B1A71 related to Passive Entry Antenna 1 General Electric Failure?
The common symptoms include issues with the passive entry system such as difficulty unlocking or locking the vehicle using the key fob, and intermittent operation of the passive entry feature.
2. What are the possible causes of OBDII code B1A71 indicating a General Electric Failure in the Passive Entry Antenna 1?
The code B1A71 can be triggered by issues such as a faulty passive entry antenna, damaged wiring or connectors in the antenna circuit, or a malfunctioning control module.
3. How can I diagnose the cause of OBDII code B1A71 related to the General Electric Failure in the Passive Entry Antenna 1?
Diagnosing the issue involves inspecting the passive entry antenna for physical damage, checking the wiring and connectors for any signs of wear or corrosion, and using a diagnostic scan tool to retrieve specific fault codes.
4. Can I repair OBDII code B1A71 related to the General Electric Failure in the Passive Entry Antenna 1 on my own?
Depending on the exact cause of the issue, some repairs may be possible for DIY enthusiasts. However, complex repairs involving control modules or extensive wiring may require professional assistance.
5. What are some tips for resolving OBDII code B1A71 related to the General Electric Failure in the Passive Entry Antenna 1?
Start by checking the antenna and its connections for any visible damage or issues. Clear the fault code using a diagnostic tool and see if it reoccurs. If the problem persists, seek help from a qualified mechanic.
6. Is it safe to continue driving with OBDII code B1A71 indicating a General Electric Failure in the Passive Entry Antenna 1?
While the vehicle may still be operable with this code present, it's important to address the underlying issue promptly to prevent potential problems with the passive entry system in the future.
7. How much does it typically cost to repair OBDII code B1A71 related to the General Electric Failure in the Passive Entry Antenna 1?
The cost of repairs can vary depending on the exact cause of the issue, labor rates in your area, and the need for replacement parts. It's recommended to obtain quotes from different repair shops for an accurate estimate.
8. Can a low car battery trigger OBDII code B1A71 associated with the General Electric Failure in the Passive Entry Antenna 1?
A weak car battery can sometimes cause electrical issues that may lead to fault codes like B1A71. It's advisable to ensure the battery is in good condition before diagnosing other potential causes.
9. How long does it typically take to repair OBDII code B1A71 related to the General Electric Failure in the Passive Entry Antenna 1?
The repair time can vary depending on the complexity of the issue and the availability of parts. Simple fixes like replacing a damaged antenna may take less time, while more intricate repairs could require a longer duration.
10. Are there any preventive measures to avoid encountering OBDII code B1A71 due to General Electric Failure in the Passive Entry Antenna 1?
Regularly inspecting the passive entry system components for any signs of wear or damage, ensuring proper maintenance of the vehicle's electrical system, and addressing any issues promptly can help prevent the occurrence of this fault code.
Discuss the causes and fixes for B1A71 RAM OBDII Code
Code B1A71 RAM comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
