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B1291 Dodge Code - Park Assist Sensor 4

Quick Answer

The B1291 diagnostic trouble code (DTC) for Dodge vehicles specifically refers to an issue with the Park Assist Sensor 4. Common causes include Faulty park assist sensor, Damaged wiring or connectors, Sensor calibration issues. 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 Dodge indicates Park Assist Sensor 4.
Common causes
Common causes include Faulty park assist sensor, Damaged wiring or connectors, Sensor calibration issues.
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 17, 2024
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Code B1291 Dodge Description

The B1291 diagnostic trouble code (DTC) for Dodge vehicles specifically refers to an issue with the Park Assist Sensor 4. This code indicates that there is a malfunction or fault detected in the fourth park assist sensor, which is responsible for detecting objects or obstacles near the rear of the vehicle when parking or maneuvering in tight spaces. The park assist system uses sensors located on the bumpers to alert the driver of any potential hazards through visual or audible warnings.

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

Common Causes of B1291 Dodge

  1. Faulty park assist sensor
  2. Damaged wiring or connectors
  3. Sensor calibration issues
  4. Control module malfunction
  5. Environmental factors such as dirt or debris obstructing the sensor

Symptoms of B1291 Dodge

  1. Park assist system not functioning properly
  2. Warning lights or messages related to park assist system on the dashboard
  3. Inaccurate or inconsistent readings from the park assist sensors
  4. Difficulty in parking or maneuvering in tight spaces

How to Fix B1291 Dodge

  1. Begin by visually inspecting the park assist sensor 4 and its surrounding area for any visible damage or obstructions.
  2. Use a diagnostic scanner to retrieve the specific trouble code and further diagnose the issue with the park assist system.
  3. Test the sensor's functionality by checking its resistance and voltage readings to determine if it is operating within specifications.
  4. Replace the faulty park assist sensor if necessary, ensuring proper installation and calibration to ensure accurate detection.
  5. Clear the DTC from the vehicle's computer system and test the park assist system to verify that the issue has been resolved.

Cost to Fix B1291 Dodge

The typical repair costs for addressing a B1291 code related to the Park Assist Sensor 4 can vary depending on the specific cause of the issue. In general, 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 control module issues that need to be addressed. It's recommended to consult with a qualified mechanic or auto repair shop for an accurate estimate based on the vehicle's make and model, as well as the extent of the repairs needed. Keep in mind that labor rates can vary, with hourly rates typically ranging between $80 and $150.

What does this mean?

Tech Notes for B1291 Dodge

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

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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 Dodge Code

1. What does the OBDII code B1291 for Dodge, specifically related to Park Assist Sensor 4, indicate?

The B1291 code indicates a fault in the Park Assist Sensor 4 system, which is responsible for detecting obstacles when parking.

2. What are common symptoms of a B1291 trouble code in a Dodge vehicle?

Common symptoms include a malfunctioning or disabled Park Assist System, failure of the Park Assist Sensor 4 to work correctly, and possibly an illuminated warning light on the dashboard.

3. What are possible causes of the B1291 trouble code related to Park Assist Sensor 4 in a Dodge?

Possible causes include a faulty Park Assist Sensor 4, damaged wiring or connectors in the sensor circuit, or issues with the Park Assist control module.

4. How can I diagnose the B1291 code for Park Assist Sensor 4 in my Dodge?

Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the wiring and connectors for any visible damage, and testing the Park Assist Sensor 4 and related components for proper functionality.

5. Can I repair the B1291 code related to Park Assist Sensor 4 in my Dodge myself?

While simple checks like inspecting wiring connections can be done by DIY enthusiasts, diagnosing and repairing complex issues with the Park Assist system may require professional expertise and specialized tools.

6. Are there any tips for preventing the B1291 trouble code related to Park Assist Sensor 4 in my Dodge?

Regularly inspecting the Park Assist system components, keeping sensors clean from dirt and debris, and avoiding collisions or impacts to the sensors can help prevent issues leading to the B1291 trouble code.

7. How important is it to address the B1291 trouble code for Park Assist Sensor 4 in my Dodge promptly?

Addressing the B1291 code promptly is recommended to ensure the proper functioning of the Park Assist system, which enhances safety during parking maneuvers and helps prevent collisions.

8. Can the B1291 trouble code related to Park Assist Sensor 4 affect other vehicle systems in my Dodge?

While the B1291 code specifically relates to the Park Assist Sensor 4 system, a malfunction in this area may impact the overall performance of the Park Assist system and potentially affect other related systems.

9. Is it safe to continue driving my Dodge with the B1291 trouble code related to Park Assist Sensor 4?

It is generally safe to drive the vehicle with the B1291 trouble code, but it is advisable to address the issue promptly to ensure the proper functioning of the Park Assist system.

10. How much can I expect to pay to repair the B1291 trouble code for Park Assist Sensor 4 in my Dodge?

The cost of repairing the B1291 code can vary based on the specific issue causing the fault, labor rates in your area, and whether you choose to address the problem yourself or take it to a professional mechanic.

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