Engine-CodesChrysler – B2120 Chrysler

B2120 Chrysler Code - Ignition Run/Acc/Pad Control Circuit Open

Quick Answer

The B2120 Chrysler code refers to an issue with the Ignition Run/Acc/Pad Control Circuit being open. Common causes include Damaged wiring in the ignition system, Faulty ignition switch, Malfunctioning ignition module. 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
B2120 Chrysler indicates Ignition Run/Acc/Pad Control Circuit Open.
Common causes
Common causes include Damaged wiring in the ignition system, Faulty ignition switch, Malfunctioning ignition module.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B2120 Chrysler Description

The B2120 Chrysler code refers to an issue with the Ignition Run/Acc/Pad Control Circuit being open. This means that there is a break or interruption in the circuit that controls the ignition system in the vehicle. The ignition system is responsible for starting the engine and keeping it running smoothly. When this circuit is open, it can lead to a variety of problems with the vehicle's performance.

OBDII Code B2120 Chrysler - Ignition Run/Acc/Pad Control Circuit Open
B2120 Chrysler Code - Ignition Run/Acc/Pad Control Circuit Open

Common Causes of B2120 Chrysler

  1. Damaged wiring in the ignition system
  2. Faulty ignition switch
  3. Malfunctioning ignition module
  4. Problem with the keyless entry system
  5. Corrosion or loose connections in the circuit

Symptoms of B2120 Chrysler

  1. Difficulty starting the vehicle
  2. Engine stalling while driving
  3. Poor acceleration
  4. Reduced fuel efficiency
  5. Increased emissions

How to Fix B2120 Chrysler

  1. Conduct a thorough inspection of the ignition system to locate the open circuit
  2. Repair or replace any damaged wiring or components in the Ignition Run/Acc/Pad Control Circuit
  3. Test the ignition system to ensure proper functionality
  4. Clear the diagnostic trouble codes from the vehicle's computer
  5. Conduct a road test to confirm that the issue has been resolved

Cost to Fix B2120 Chrysler

The typical repair costs for addressing an open Ignition Run/Acc/Pad Control Circuit can range from $200 to $500, depending on the extent of the damage and the specific components that need to be repaired or replaced. This estimate includes both parts and labor. It's important to note that diagnostic time and labor rates can vary, so it's advisable to check with local auto repair shops for a more accurate estimate based on your specific vehicle make and model.

Need more information about the B2120 Chrysler code?

Need more information on how to fix the B2120 Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2120 Chrysler 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 B2120 Chrysler Code

What does the OBDII code B2120 mean for a Chrysler vehicle?

1. The B2120 code indicates an open circuit in the Ignition Run/Accessory/Pad Control Circuit, which is responsible for powering certain electrical systems when the ignition is in the "Run" or "Accessory" position. 2.

What are the common symptoms of a B2120 code in a Chrysler?

Symptoms may include electrical accessories not functioning in the "Run" or "Accessory" position, issues starting the vehicle, or a lit check engine or warning light. 3.

What causes the B2120 code to appear in a Chrysler?

This code is typically caused by a damaged or broken wire in the ignition circuit, a faulty ignition switch, a corroded connector, or an issue with the Body Control Module (BCM). 4.

Can I drive my Chrysler with a B2120 code?

While the vehicle may still run, ignoring this code could lead to further electrical issues or failure of critical systems. It’s best to address the problem as soon as possible. 5.

How can a mechanic diagnose the B2120 code?

A mechanic will use a scan tool to verify the code, inspect wiring and connectors for damage or corrosion, test the ignition switch, and check for proper operation of the Body Control Module (BCM). 6.

What repairs can fix a B2120 code in a Chrysler?

Repairs may include repairing or replacing damaged wiring, cleaning or replacing corroded connectors, replacing the ignition switch, or reprogramming or replacing the BCM if necessary. 7.

How much does it cost to repair the B2120 code on a Chrysler?

The cost varies depending on the specific issue, but it typically ranges from $100 to $500, including parts and labor, with BCM replacement being on the higher end. 8.

Can I fix a B2120 code on my Chrysler myself?

If you’re experienced with automotive electrical systems, you may be able to inspect and repair wiring or connectors. However, diagnosing and repairing more complex issues, like a faulty BCM, may require professional assistance. 9.

Does the B2120 code always indicate a faulty ignition switch?

No, while a faulty ignition switch is a potential cause, the issue could also lie in damaged wiring, corroded connectors, or a malfunctioning BCM. 10.

How can I prevent the B2120 code from occurring in my Chrysler?

Regular maintenance, including inspecting wiring and connectors for damage or corrosion, and addressing electrical issues promptly can help prevent this code from appearing.

Discuss the causes and fixes for B2120 Chrysler OBDII Code

Code B2120 Chrysler comments

No comments found for this page.