AutoCodes – Generic – B1290

B1290 Code - Park Assist Sensor 3

Quick Answer

The Park Assist Sensors (PTS) are ultrasonic transceivers that are completely controlled by the Park Assist Module. Common causes include Faulty Park Assist Sensor 3, Park Assist Sensor 3 harness is open or shorted, Park Assist Sensor 3 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: B1290 indicates Park Assist Sensor 3.
Common causes: Common causes include Faulty Park Assist Sensor 3, Park Assist Sensor 3 harness is open or shorted, Park Assist Sensor 3 circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 12,074

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1290 Description

The Park Assist Sensors (PTS) are ultrasonic transceivers that are completely controlled by the Park Assist Module. The sensors transmit and receive ultrasonic signals. Each sensor has a voltage, signal, and return the circuit to the module. The sensors communicate with the Park Assist Module using a dedicated serial bus communication circuit. The Park Assist Module monitors the PTS Sensor when the vehicle in reverse and during the self-test while the vehicle is in drive between 18 km/h (11 mph) and 40 km/h (25 mph). The Park Assist Module sets the OBDII code when the Park Assist Sensor Signal circuit is not to factory specifications.

OBDII Code B1290 - Park Assist Sensor 3 - AutoCodes.com — B1290 Code - Park Assist Sensor 3

What does this mean?

What are the Possible Causes of the DTC B1290?

Faulty Park Assist Sensor 3
Park Assist Sensor 3 harness is open or shorted
Park Assist Sensor 3 circuit poor electrical connection
Faulty Park Assist Module

How to Fix the DTC B1290?

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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1290 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 B1290 code?

Need more information on how to fix the B1290 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1290 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1290 Chrysler — Park Assist Sensor 3
B1290 Dodge — Park Assist Sensor 3
B1290 Jeep — Park Assist Sensor 3
B1290 RAM — Park Assist Sensor 3

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 Code

1. What does the OBDII code B1290 mean?

B1290 indicates an issue with Park Assist Sensor 3, typically referring to a malfunction or fault in the third parking sensor of the system.

2. What are the common symptoms of the B1290 code?

Symptoms include the parking assist system not functioning, inaccurate proximity alerts, or warning lights on the dashboard.

3. What causes the B1290 code to appear?

Causes can include a faulty sensor, damaged wiring or connectors, dirt or debris blocking the sensor, or a control module issue.

4. How can I diagnose a B1290 code?

Start by scanning the vehicle with an OBDII tool, inspecting Park Assist Sensor 3 and its wiring for damage, and checking for obstructions around the sensor.

5. Can dirt or debris trigger the B1290 code?

Yes, dirt, ice, or other debris can obstruct the sensor and cause it to malfunction, leading to this code.

6. How do I fix a B1290 code?

Cleaning the sensor, repairing damaged wiring, or replacing the faulty sensor usually resolves the issue. A system calibration may also be needed.

7. Is B1290 a serious issue?

While it doesn’t affect vehicle drivability, it impairs the parking assist system, which can increase the risk of low-speed collisions.

8. How much does it cost to repair the B1290 code?

Costs vary depending on the issue, but replacing a single parking sensor typically ranges from $100 to $300, including parts and labor.

9. Can I drive with the B1290 code active?

Yes, you can drive, but the parking assist system may not function correctly, so exercise extra caution when parking.

10. Do I need to recalibrate the system after replacing Park Assist Sensor 3?

Yes, many vehicles require system recalibration after replacing a parking sensor to ensure proper functionality.

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