Engine-Codes.com
Engine-Codes – RAM – B1291 RAM

B1291 RAM Code - Park Assist Sensor 4

Quick Answer

The B1291 diagnostic trouble code (DTC) specifically refers to an issue with Park Assist Sensor 4 in the vehicle. Common causes include Faulty Park Assist Sensor 4, Damaged wiring or connectors, Corrosion or debris affecting the sensor's functionality. 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
B1291 RAM indicates Park Assist Sensor 4.
Common causes
Common causes include Faulty Park Assist Sensor 4, Damaged wiring or connectors, Corrosion or debris affecting the sensor's functionality.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1291 RAM Description

The B1291 diagnostic trouble code (DTC) specifically refers to an issue with Park Assist Sensor 4 in the vehicle. Park assist sensors are designed to help drivers navigate tight parking spaces and avoid obstacles while reversing. Sensor 4 is typically located on the rear bumper of the vehicle. When this sensor malfunctions or fails to operate correctly, it can impact the vehicle's ability to provide accurate and reliable parking assistance.

OBDII Code B1291 RAM - Park Assist Sensor 4
B1291 RAM Code - Park Assist Sensor 4

Common Causes of B1291 RAM

  1. Faulty Park Assist Sensor 4
  2. Damaged wiring or connectors
  3. Corrosion or debris affecting the sensor's functionality
  4. Issues with the vehicle's computer system or software
  5. Impact damage to the sensor or bumper

Symptoms of B1291 RAM

  1. Park assist system not providing accurate distance readings
  2. Park assist system not activating or turning off unexpectedly
  3. Warning light illuminated on the dashboard
  4. Audible alerts not functioning properly
  5. Inconsistent behavior of the park assist system

How to Fix B1291 RAM

  1. Begin by conducting a visual inspection of Park Assist Sensor 4 and its surrounding area for any visible damage or debris.
  2. Use a diagnostic scan tool to retrieve the specific error codes and pinpoint the exact issue with the sensor.
  3. Test the sensor's functionality by checking its electrical connections and wiring for any faults.
  4. If the sensor is found to be faulty, replace it with a new sensor compatible with the vehicle's make and model.
  5. Clear the error codes from the vehicle's computer system and test the park assist system to ensure proper functionality.

Cost to Fix B1291 RAM

The cost of repairing a Park Assist Sensor 4 issue can vary depending on the specific cause of the problem and the vehicle's make and model. On average, the cost of replacing a park assist sensor can range from $100 to $300, including parts and labor. Additional costs may apply if there are wiring or connection issues that need to be addressed. It's recommended to consult with a professional mechanic or auto repair shop for an accurate cost estimate based on your vehicle's specific requirements. Keep in mind that labor rates and diagnostic fees can vary based on location and the service provider.

What does this mean?

Tech Notes for B1291 RAM

B1291-11 PTS SENSOR 4 CIRCUIT SHORT TO GROUND

B1291-12 PTS SENSOR 4 CIRCUIT SHORT TO BATTERY

B1291-25 PTS SENSOR 4 SIGNAL SHAPE / WAVEFORM FAILURE

B1291-92 PTS SENSOR 4 PERFORMANCE OR INCORRECT OPERATION

Need more information about the B1291 RAM code?

Need more information on how to fix the B1291 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1291 RAM 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 B1291 RAM Code

1. What are the common symptoms of OBDII code B1291 RAM related to Park Assist Sensor 4?

The common symptoms include a malfunctioning or non-operational Park Assist Sensor 4, leading to issues with parking assistance and potentially triggering warning lights on the dashboard.

2. What are the possible causes of OBDII code B1291 RAM for Park Assist Sensor 4?

The code B1291 RAM for Park Assist Sensor 4 can be triggered by issues such as sensor damage, wiring problems, sensor misalignment, or system calibration errors.

3. How can I diagnose the OBDII code B1291 RAM for Park Assist Sensor 4?

To diagnose the issue, you can use an OBDII scanner to read the code and pinpoint the specific problem with Park Assist Sensor 4. Additionally, visually inspecting the sensor and its wiring for any visible damage can also help in diagnosis.

4. What are some repair tips for addressing OBDII code B1291 RAM related to Park Assist Sensor 4?

Repair tips may include checking and repairing any damaged wiring, realigning or replacing the sensor if necessary, ensuring proper sensor calibration, and clearing the code using an OBDII scanner.

5. Can I fix OBDII code B1291 RAM for Park Assist Sensor 4 on my own, or do I need professional help?

Depending on your automotive repair skills and knowledge, you may be able to address the code B1291 RAM yourself by following repair guides and using the right tools. However, if you are unsure or uncomfortable with the repair process, it's recommended to seek professional help.

6. Are there any safety precautions to consider when working on OBDII code B1291 RAM for Park Assist Sensor 4?

When working on the Park Assist Sensor 4 related to code B1291 RAM, ensure that the vehicle is powered off, use proper safety gear like gloves and goggles, and follow manufacturer guidelines to prevent any accidents or injuries.

7. Can a faulty Park Assist Sensor 4 triggering OBDII code B1291 RAM affect other vehicle systems?

Yes, a malfunctioning Park Assist Sensor 4 can potentially affect other vehicle systems that rely on accurate sensor data, such as the parking assistance system, rear collision warning, or even the overall performance of the vehicle.

8. How can I prevent OBDII code B1291 RAM for Park Assist Sensor 4 from recurring?

To prevent the code from recurring, it's essential to regularly inspect and maintain the Park Assist Sensor 4, ensure proper sensor alignment and calibration, and address any issues promptly to avoid further damage.

9. Is it safe to drive with OBDII code B1291 RAM related to Park Assist Sensor 4 unresolved?

While it may be safe to drive with the code B1291 RAM initially, it's not recommended to ignore the issue for an extended period as it can impact your overall driving experience and potentially lead to further sensor or system damage.

10. How much does it typically cost to repair OBDII code B1291 RAM for Park Assist Sensor 4 at a professional auto repair shop?

The cost of repairing the OBDII code B1291 RAM related to Park Assist Sensor 4 can vary depending on the extent of the damage, parts needed for replacement, labor charges, and the specific shop rates. It's advisable to get quotes from different shops for an accurate estimate.

Discuss the causes and fixes for B1291 RAM OBDII Code

Submit a New Comment

Code B1291 RAM comments

No comments found for this page.