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B2124 Chrysler Code - Ignition Run Control Circuit Open

Quick Answer

The B2124 Chrysler diagnostic trouble code (DTC) refers to an issue with the ignition run control circuit being open. Common causes include Faulty ignition switch, Broken or damaged wiring harness, Loose or corroded electrical connections. 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
B2124 Chrysler indicates Ignition Run Control Circuit Open.
Common causes
Common causes include Faulty ignition switch, Broken or damaged wiring harness, Loose or corroded electrical connections.
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 06, 2024
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Code B2124 Chrysler Description

The B2124 Chrysler diagnostic trouble code (DTC) refers to an issue with the ignition run control circuit being open. This means that there is a break or interruption in the electrical circuit that controls the ignition system when the vehicle is running. The ignition run control circuit is essential for providing power to the ignition system components, allowing the engine to start and run smoothly. When this circuit is open, it can lead to problems with engine starting, performance, and overall drivability.

OBDII Code B2124 Chrysler - Ignition Run Control Circuit Open
B2124 Chrysler Code - Ignition Run Control Circuit Open

Common Causes of B2124 Chrysler

  1. Faulty ignition switch
  2. Broken or damaged wiring harness
  3. Loose or corroded electrical connections
  4. Defective ignition control module
  5. Issues with the engine control module (ECM)

Symptoms of B2124 Chrysler

  1. Engine stalling or rough idling
  2. Difficulty starting the engine
  3. Reduced engine power
  4. Engine misfires
  5. Check engine light illuminated on the dashboard

How to Fix B2124 Chrysler

  1. Begin by diagnosing the root cause of the open ignition run control circuit using a multimeter to test for continuity and voltage.
  2. Inspect the ignition switch and wiring harness for any visible damage or signs of wear. Replace any damaged components.
  3. Check and tighten any loose electrical connections in the circuit.
  4. Test the ignition control module and ECM for proper operation. Replace if necessary.
  5. Clear the DTC with a scan tool after completing the repairs and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix B2124 Chrysler

The typical repair cost for addressing an ignition run control circuit open issue can vary depending on the specific cause of the problem and the parts needed for the repair. On average, the repair costs for this type of issue can range from $100 to $500, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple sources to get an accurate estimate.

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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 B2124 Chrysler Code

1. What are common symptoms of OBDII code B2124 Chrysler (Ignition Run Control Circuit Open)?

- Common symptoms include the engine not starting, intermittent starting issues, and the vehicle stalling while driving.

2. What causes the OBDII code B2124 Chrysler to trigger?

- The code is typically triggered by a malfunction in the ignition run control circuit, such as damaged wiring, faulty ignition switch, or a defective ignition run/start relay.

3. How can I diagnose the Ignition Run Control Circuit Open issue?

- Diagnosing the issue involves using a scan tool to read the OBDII codes, checking the wiring and connections related to the ignition system, and testing the ignition switch and relay for proper functionality.

4. Can I still drive my vehicle with the B2124 code present?

- It is not recommended to drive the vehicle with the B2124 code present, as it can lead to potential safety hazards and further damage to the ignition system.

5. How can I repair the Ignition Run Control Circuit Open issue?

- Repairing the issue may involve repairing or replacing damaged wiring, replacing a faulty ignition switch or relay, or addressing any other underlying issues causing the circuit to be open.

6. Will resetting the OBDII code B2124 make it go away permanently?

- Simply resetting the code may temporarily clear it, but if the underlying issue causing the code is not addressed and repaired, the code is likely to reappear.

7. Can a DIY enthusiast fix the B2124 code issue at home?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the Ignition Run Control Circuit Open issue at home. However, professional assistance may be necessary for more complex repairs.

8. How much does it cost to repair the Ignition Run Control Circuit Open issue?

- The cost of repairs can vary depending on the extent of the issue and the specific components that need to be repaired or replaced. It is recommended to obtain quotes from automotive professionals for a more accurate estimate.

9. Is the B2124 code specific to Chrysler vehicles only?

- The B2124 code is specific to Chrysler vehicles and indicates an issue with the Ignition Run Control Circuit. Other vehicle manufacturers may have different codes for similar issues.

10. How can I prevent the OBDII code B2124 from occurring in the future?

- Regular maintenance of the ignition system, including checking the wiring and connections, can help prevent issues that may trigger the B2124 code. Additionally, addressing any ignition system problems promptly can help prevent the code from occurring in the future.

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