AutoCodes – Jeep – B1A77 Jeep

B1A77 Jeep Code - Remote Start Antenna Circuit Low

Quick Answer

If the vehicle is configured to have Remote Start and the RF Hub does not sense an antenna present, this Diagnostic Trouble Code (DTC) will set. Common causes include Faulty Remote Start Antenna, Remote Start Antenna harness is open or shorted, Remote Start Antenna 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: B1A77 Jeep indicates Remote Start Antenna Circuit Low.
Common causes: Common causes include Faulty Remote Start Antenna, Remote Start Antenna harness is open or shorted, Remote Start Antenna 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.

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Code Popularity 1,295

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1A77 Jeep Description

If the vehicle is configured to have Remote Start and the RF Hub does not sense an antenna present, this Diagnostic Trouble Code (DTC) will set.

OBDII Code B1A77 Jeep - Remote Start Antenna Circuit Low - AutoCodes.com — B1A77 Jeep Code - Remote Start Antenna Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1A77 Jeep?

Faulty Remote Start Antenna
Remote Start Antenna harness is open or shorted
Remote Start Antenna circuit poor electrical connection
Faulty Radio Frequency Hub (RF Hub) Module

How to Fix the DTC B1A77 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1A77 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.

Need more information about the B1A77 Jeep code?

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Need Help with the Code?

Get the B1A77 Jeep code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1A77 Jeep Code

1. What are common symptoms of OBDII code B1A77 "Remote Start Antenna Circuit Low" in a Jeep?

- Common symptoms include issues with the remote start system not working or intermittent operation.

2. What can cause the OBDII code B1A77 in a Jeep?

- The code B1A77 "Remote Start Antenna Circuit Low" in a Jeep can be caused by a faulty remote start antenna, wiring issues, or a malfunctioning remote start module.

3. How can I diagnose the cause of OBDII code B1A77 in my Jeep?

- To diagnose the cause of code B1A77, you can start by checking the remote start antenna for any physical damage, inspecting the wiring for any breaks or shorts, and testing the remote start module for proper functionality.

4. Can I still drive my Jeep with OBDII code B1A77 present?

- Yes, you can still drive your Jeep with OBDII code B1A77 present, but it is recommended to address the issue as soon as possible to prevent further complications with the remote start system.

5. How do I repair OBDII code B1A77 "Remote Start Antenna Circuit Low" in my Jeep?

- Repairing OBDII code B1A77 may involve replacing the remote start antenna, repairing any damaged wiring, or replacing the remote start module if necessary.

6. Are there any DIY tips for fixing OBDII code B1A77 in a Jeep?

- DIY tips for fixing OBDII code B1A77 may include visually inspecting the antenna and wiring for any obvious issues before considering professional help.

7. Can weather conditions affect the remote start antenna circuit in a Jeep?

- Yes, extreme weather conditions like heavy rain or snow can potentially damage the remote start antenna circuit, leading to the triggering of code B1A77.

8. Will resetting the Jeep's computer clear the OBDII code B1A77?

- Resetting the Jeep's computer may temporarily clear the code B1A77, but if the underlying issue is not addressed, the code is likely to reappear.

9. How much does it typically cost to repair OBDII code B1A77 in a Jeep?

- The cost of repairing OBDII code B1A77 in a Jeep can vary depending on the specific cause of the issue, but it may involve parts and labor expenses ranging from $100 to $500 or more.

10. Is it necessary to visit a dealership to fix OBDII code B1A77 in a Jeep?

- While visiting a dealership with specialized knowledge and equipment is recommended for complex issues, independent automotive repair shops can also effectively diagnose and repair OBDII code B1A77 in a Jeep.