AutoCodes – RAM – B2126 RAM

B2126 RAM Code - Sensor Supply Voltage Low

Quick Answer

The Park Assist Module monitors the Sensor Supply Voltage. Common causes include Faulty Park Assist Sensor, Park Assist Sensor harness is open or shorted, Park Assist Sensor circuit poor electrical connection. 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: B2126 RAM indicates Sensor Supply Voltage Low.
Common causes: Common causes include Faulty Park Assist Sensor, Park Assist Sensor harness is open or shorted, Park Assist Sensor circuit poor electrical connection.
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.

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Code Popularity 667

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2126 RAM Description

The Park Assist Module monitors the Sensor Supply Voltage. The Park Assist Module will set the OBDII code when the Park Assist Sensor supply voltage less than 7.2 volts.

OBDII Code B2126 RAM - Sensor Supply Voltage Low - AutoCodes.com — B2126 RAM Code - Sensor Supply Voltage Low

What does this mean?

What are the Possible Causes of the DTC B2126 RAM?

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

How to Fix the DTC B2126 RAM?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2126 RAM 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 B2126 RAM code?

Need more information on how to fix the B2126 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2126 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 B2126 RAM Code

1. What are the common symptoms of OBDII code B2126 RAM Sensor Supply Voltage Low?

The common symptoms include dashboard warning lights illuminating, rough engine idling, poor fuel efficiency, and potential stalling of the vehicle.

2. What are the possible causes of the B2126 OBDII code?

The code B2126 can be caused by issues such as a faulty sensor, damaged wiring, poor electrical connections, or a failing power supply to the sensor.

3. How can I diagnose the B2126 code related to the RAM sensor supply voltage?

To diagnose the issue, you can use an OBDII scanner to read the fault codes, inspect the sensor and wiring for physical damage, and test the voltage supply to the sensor using a multimeter.

4. What are the repair tips for fixing the B2126 RAM Sensor Supply Voltage Low code?

Repair tips include checking and repairing any damaged wiring or connections, replacing the faulty sensor if necessary, ensuring proper power supply to the sensor, and clearing the fault codes after repairs.

5. Can a DIY enthusiast fix the B2126 code at home?

While some basic troubleshooting and repairs can be done at home, diagnosing and fixing the B2126 code may require advanced tools and technical knowledge, so it is recommended to consult with a professional mechanic.

6. Is it safe to continue driving with the B2126 OBDII code active?

It is not recommended to continue driving with the B2126 code active, as it can lead to potential drivability issues and further damage to the vehicle. It is best to address the issue promptly.

7. How much does it cost to repair the B2126 RAM Sensor Supply Voltage Low code?

The cost of repairing the B2126 code can vary depending on the root cause of the issue, the labor rates of the repair shop, and the cost of any parts that need replacement. It is advisable to get a few quotes from different mechanics.

8. Can extreme weather conditions affect the B2126 OBDII code?

Extreme weather conditions can potentially impact the sensor's performance and trigger the B2126 code. It is essential to keep the vehicle well-maintained to prevent weather-related issues.

9. How long does it take to repair the B2126 RAM Sensor Supply Voltage Low code?

The repair time for the B2126 code can vary depending on the complexity of the issue and the availability of parts. In general, it may take a few hours to a day to diagnose and fix the problem.

10. Will resetting the OBDII code clear the B2126 RAM Sensor Supply Voltage Low issue permanently?

Resetting the OBDII code may temporarily clear the warning lights, but it will not fix the underlying problem causing the B2126 code. It is crucial to diagnose and address the root cause for a permanent solution.