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B1290 RAM Code - Park Assist Sensor 3

Quick Answer

The B1290 RAM diagnostic trouble code (DTC) specifically refers to an issue with the Park Assist Sensor 3 in the vehicle. Common causes include Faulty Park Assist Sensor 3, Damaged wiring or connectors related to the sensor, Corrosion or debris affecting sensor performance. 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
B1290 RAM indicates Park Assist Sensor 3.
Common causes
Common causes include Faulty Park Assist Sensor 3, Damaged wiring or connectors related to the sensor, Corrosion or debris affecting sensor performance.
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 B1290 RAM Description

The B1290 RAM diagnostic trouble code (DTC) specifically refers to an issue with the Park Assist Sensor 3 in the vehicle. This code indicates that there is a malfunction or fault detected in the third park assist sensor, which is responsible for detecting obstacles or objects in the vehicle's vicinity when parking or maneuvering in tight spaces. The park assist system relies on sensors strategically placed around the vehicle to provide audible or visual alerts to the driver, helping to prevent collisions and improve overall safety.

OBDII Code B1290 RAM - Park Assist Sensor 3
B1290 RAM Code - Park Assist Sensor 3

Common Causes of B1290 RAM

  1. Faulty Park Assist Sensor 3.
  2. Damaged wiring or connectors related to the sensor.
  3. Corrosion or debris affecting sensor performance.
  4. Issues with the control module responsible for processing sensor data.
  5. Electrical problems in the park assist system circuitry.

Symptoms of B1290 RAM

  1. Inaccurate or no park assist alerts when approaching obstacles.
  2. Malfunction indicator light (MIL) illuminated on the dashboard.
  3. Audible warning sounds not functioning properly.
  4. Park assist system disabled message displayed on the instrument cluster.
  5. Difficulty parking or maneuvering in tight spaces due to lack of assistance.

How to Fix B1290 RAM

  1. Begin by conducting a thorough diagnostic scan to confirm the B1290 RAM code and pinpoint the exact cause of the issue.
  2. Inspect the Park Assist Sensor 3 for any physical damage, corrosion, or obstructions that may be affecting its performance.
  3. Check the wiring and connectors associated with the sensor for any signs of wear, damage, or loose connections. Repair or replace as necessary.
  4. Test the control module to ensure it is functioning correctly and communicating with the sensor properly. Replace the module if it is found to be faulty.
  5. Clear the DTC from the vehicle's memory after completing the repairs and test the park assist system to verify that the issue has been resolved.

Cost to Fix B1290 RAM

The typical repair costs for addressing the B1290 RAM code related to the Park Assist Sensor 3 can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing a faulty sensor or repairing wiring/connectors may cost between $200 and $500, including parts and labor. However, if the control module needs to be replaced, the total repair cost could range from $500 to $1000 or more.

What does this mean?

Tech Notes for B1290 RAM

B1290-11 PTS SENSOR 3 CIRCUIT SHORT TO GROUND

B1290-12 PTS SENSOR 3 CIRCUIT SHORT TO BATTERY

B1290-25 PTS SENSOR 3 SIGNAL SHAPE / WAVEFORM FAILURE

B1290-92 PTS SENSOR 3 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 B1290 RAM Code

1. What does the OBDII code B1290 indicate?

The B1290 code specifically relates to an issue with Park Assist Sensor 3. It indicates that there is a fault detected in the sensor or its circuit, which can affect the functionality of the parking assist system.

2. What are common symptoms of the B1290 code?

Common symptoms include the parking assist system not functioning, the parking assist warning light illuminating on the dashboard, and possibly audible warnings or alerts not functioning correctly when approaching obstacles.

3. What can cause the B1290 code to appear?

Causes for the B1290 code can include a faulty Park Assist Sensor 3, damaged wiring or connectors associated with the sensor, or a problem with the control module.

4. How can I troubleshoot and fix the B1290 code?

To troubleshoot and fix the B1290 code, start by visually inspecting the sensor and its wiring for any visible damage or disconnections. If no physical issues are found, proceed to test the sensor’s functionality with a multimeter and compare it to manufacturer specifications. If the sensor is faulty, replace it. If the wiring is the issue, repair or replace the damaged sections.

5. Is it safe to drive with the B1290 code?

While driving with the B1290 code isn't typically dangerous, it does impair the park assist feature, which can increase the risk of collisions during parking maneuvers. It is advisable to get the issue fixed to maintain full functionality of your vehicle’s parking assist system.

6. Will the B1290 code clear on its own if the issue is resolved?

Yes, in many vehicles, once the issue causing the B1290 code is resolved, the code will clear after a few driving cycles. However, it’s often recommended to use an OBDII scanner to clear the code manually after repair to ensure it has been fully resolved.

7. What tools are needed to diagnose the B1290 code?

Diagnosing the B1290 code typically requires an OBDII scanner to read the code and monitor live data, a multimeter for testing sensor functionality and wiring integrity, and basic hand tools for accessing the sensor.

8. How important is it to address the B1290 code immediately?

Addressing the B1290 code should be considered moderately important, primarily for convenience and the full functionality of your vehicle’s parking assist system. Delaying repairs can lead to a complete failure of the parking assist system, making parking more difficult and potentially leading to accidents.

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