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B1291 Chrysler Code - Park Assist Sensor 4

Quick Answer

The B1291 Chrysler diagnostic trouble code (DTC) specifically refers to an issue with the Park Assist Sensor 4 in the vehicle. Common causes include Faulty Park Assist Sensor 4, Wiring issues such as breaks, shorts, or corrosion, Faulty control module for the park assist system. 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 Chrysler indicates Park Assist Sensor 4.
Common causes
Common causes include Faulty Park Assist Sensor 4, Wiring issues such as breaks, shorts, or corrosion, Faulty control module for the park assist system.
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 Chrysler Description

The B1291 Chrysler diagnostic trouble code (DTC) specifically refers to an issue with the Park Assist Sensor 4 in the vehicle. Park assist sensors are a crucial component of modern vehicles, especially larger ones, as they help drivers navigate tight parking spaces and avoid collisions with obstacles. Sensor 4 is one of the sensors located on the rear of the vehicle, typically integrated into the bumper or bodywork.

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

Common Causes of B1291 Chrysler

  1. Faulty Park Assist Sensor 4.
  2. Wiring issues such as breaks, shorts, or corrosion.
  3. Faulty control module for the park assist system.
  4. Physical damage to the sensor or surrounding components.
  5. Water or debris intrusion affecting sensor functionality.

Symptoms of B1291 Chrysler

  1. Park assist system not engaging or providing inaccurate readings.
  2. Audible warning alerts from the park assist system.
  3. Dashboard warning light related to park assist system.
  4. Difficulty parking or maneuvering in tight spaces.
  5. Visible damage to the park assist sensor or wiring.

How to Fix B1291 Chrysler

  1. Begin by visually inspecting the Park Assist Sensor 4 and surrounding wiring for any visible damage or signs of wear.
  2. Use a diagnostic scan tool to retrieve the specific fault codes and pinpoint the exact issue with the sensor.
  3. Test the sensor's functionality by checking for proper voltage and signal output.
  4. Replace the faulty Park Assist Sensor 4 if necessary, ensuring proper installation and calibration.
  5. Clear the DTCs from the vehicle's computer system and test the park assist system to ensure proper operation.

Cost to Fix B1291 Chrysler

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. In general, the cost of parts for a new sensor can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total repair cost for addressing a B1291 Chrysler code related to Park Assist Sensor 4 could be in the range of $150 to $500, including parts and labor. It's important to note that these are rough estimates, and actual costs may vary based on the factors mentioned earlier.

What does this mean?

Tech Notes for B1291 Chrysler

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 Chrysler Code

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

The common symptoms include malfunction or complete failure of Park Assist Sensor 4, leading to issues with the vehicle's parking assist system.

2. What are the potential causes of OBDII code B1291 in a Chrysler related to Park Assist Sensor 4?

The code B1291 in a Chrysler related to Park Assist Sensor 4 can be triggered by a faulty Park Assist Sensor 4, damaged wiring or connectors, or a sensor calibration issue.

3. How can I diagnose the cause of OBDII code B1291 in my Chrysler related to Park Assist Sensor 4?

To diagnose the issue, you can visually inspect the Park Assist Sensor 4 and its wiring for any visible damage. Using a diagnostic scan tool to read the code and sensor data can also help pinpoint the problem.

4. Can I repair OBDII code B1291 in my Chrysler related to Park Assist Sensor 4 myself?

If you have experience with automotive repairs and the necessary tools, you may be able to repair the issue yourself by replacing the faulty Park Assist Sensor 4 or repairing any damaged wiring or connectors.

5. Is it safe to continue driving my Chrysler with OBDII code B1291 related to Park Assist Sensor 4?

While the vehicle may still be operable with the code present, it is recommended to address the issue as soon as possible to ensure the proper functioning of the Park Assist Sensor 4 and the overall parking assist system.

6. How much does it typically cost to repair OBDII code B1291 in a Chrysler related to Park Assist Sensor 4?

The cost of repairing OBDII code B1291 related to Park Assist Sensor 4 in a Chrysler can vary depending on the extent of the issue, the labor rates in your area, and whether you choose to do the repair yourself or take it to a professional mechanic.

7. Can OBDII code B1291 in a Chrysler related to Park Assist Sensor 4 cause other problems in the vehicle?

While the main issue with this code is related to the Park Assist Sensor 4, unresolved issues with the parking assist system can potentially lead to difficulties in parking and maneuvering the vehicle safely.

8. Are there any preventative measures I can take to avoid OBDII code B1291 related to Park Assist Sensor 4 in my Chrysler?

Routine maintenance checks, such as inspecting the sensors and wiring for any signs of wear or damage, can help prevent issues like code B1291 related to Park Assist Sensor 4 from occurring.

9. Will resetting the OBDII code B1291 related to Park Assist Sensor 4 make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is important to diagnose and repair the root cause of the problem.

10. How long does it typically take to repair OBDII code B1291 related to Park Assist Sensor 4 in a Chrysler?

The repair time can vary depending on the extent of the issue, the availability of parts, and whether you are doing the repair yourself or taking it to a professional mechanic. Typically, it can take a few hours to a day for the repair to be completed.

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